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A Brief History of Modems

Ant points out this two-page TechRadar article about the history of modems; the photographs of some behemoth old modems might give you new respect for just how much is packed into modern wireless devices.

249 comments

  1. Let me be the first to say by palegray.net · · Score: 5, Funny

    how much I miss my original mod [NO CARRIER]

    1. Re:Let me be the first to say by palegray.net · · Score: 5, Funny

      ATDT++++1800MODITUP

    2. Re:Let me be the first to say by mother_reincarnated · · Score: 2, Informative

      +++ATH0

    3. Re:Let me be the first to say by adolf · · Score: 4, Informative

      You mean:

      +++
      [pause*]
      ATH0
      ATDT18400MODITUP

      [*: Pause required for modems properly requiring a delay before dropping to data mode, as patented by Hayes. Other, non-supporting/paying modems used the same commands, but did not require silence between +++ and a command: A properly-crafted ping command was sufficient to take such modems/users completely neatly offline in an age of TCP/IP, though a link for a citation evades me in these modern times.]

    4. Re:Let me be the first to say by Anonymous Coward · · Score: 0

      Because ADSL is so much more reliable.

    5. Re:Let me be the first to say by Gerald · · Score: 2, Informative

      It's documented in CVE-1999-1228 but I'm sure it's much older than that.

    6. Re:Let me be the first to say by Anonymous Coward · · Score: 0

      ping -p 2b2b2b415448300d

      http://marc.info/?l=bugtraq&m=90695973308453&w=2 here you find more details... during my highschool irc times i had lots of fun with this.

    7. Re:Let me be the first to say by PPH · · Score: 2, Funny

      ~~op^pp~^^po~anks for hanging up the phone, dear.

      --
      Have gnu, will travel.
    8. Re:Let me be the first to say by VoltageX · · Score: 1

      You can experience the same thing today with a 3G modem. The common one is by a company called Huwaei, and as much as they claim "trade secrets", it understands normal AT commands - albeit with some GSM extensions to deal with cell network registration

      --
      "Anonymous could not immediately be reached for further comment." - International Business Times
  2. Acoustic coupler era and POTS! by arth1 · · Score: 5, Informative

    There are still a few of us left who grew up in the acoustic coupler era, where modems connected to the (back then standardized) handset, and really whistled and purred into the microphone.
    Speeds? We started with 110 baud (which back then was equivalent to bits-per-second, if you subtracted stop bits). Then came 300 baud.
    Then someone had an epiphany, and figured out that no-one could possibly type faster than 75 characters per second, and even if they could, the printer(!) that spit out whatever you typed wouldn't be able to. So by reserving the low frequencies for upstream data and the high frequencies for downstream, you could achieve the blazing speed of 1200 baud down and 75 baud up. The 1200/75 modem was a workhorse for a long time, with way faster downloads than 300/300 could give.
    Then came 1200/1200, 2400/2400, 4800 (which was really 2400 with compression), 9600, and then the Trailblazer, which was running at a ridiculously low baud rate (100 baud IIRC), but at so many parallel channels that it achieved ~18000 bps aggregate. That was lightning fast! Imagine almost 2 kB/s (unless something moved the other way at the same time, in which case speeds of course would drop). The ASCII porn didn't stand a chance against that speed monster!
    Then came the short-lived 38400, and finally the ubiquitous 56k modem. Yawn.

    In the mid-90s, we got BRI (ISDN, 2*64 kbps in most of the world, 2*56 kbps in the US). Which pretty much ended the modem era, except for in the US and UK, where 56 kbps POTS modems reigned supreme until well after the millennium.

    1. Re:Acoustic coupler era and POTS! by mother_reincarnated · · Score: 5, Insightful

      Sadly, your comment contains more actual information, and is better written, than the 'article.'

    2. Re:Acoustic coupler era and POTS! by MichaelSmith · · Score: 4, Funny

      Sadly, your comment contains more actual information, and is better written, than the 'article.'

      You read the articles?

    3. Re:Acoustic coupler era and POTS! by mother_reincarnated · · Score: 5, Funny

      ahh sh*t, busted.

    4. Re:Acoustic coupler era and POTS! by arth1 · · Score: 1

      Unfortunately, my comment isn't all that great, due to too much Innis & Gunn. There's a horrific typo in it; 75 cps should be 7.5 (given single parity and stop bits).

    5. Re:Acoustic coupler era and POTS! by Bios_Hakr · · Score: 1

      >>In the mid-90s, we got BRI (ISDN, 2*64 kbps in most of the world, 2*56 kbps in the US). Which pretty much ended the modem era, except for in the US and UK, where 56 kbps POTS modems reigned supreme until well after the millennium.

      Really? I assumed that by the late 90s, the US had transitioned to 8-bit sampling. I mean, DS-0 in the US has been 64kbps (8-bit samples * 8000 samples per second) since, what, the 50s?

      --
      I'd rather you do it wrong, than for me to have to do it at all.
    6. Re:Acoustic coupler era and POTS! by arth1 · · Score: 4, Interesting

      Yeah, US ISDN speeds really were (are?) lower, due to RBS compensating for bad signal quality.

      See here for details.

    7. Re:Acoustic coupler era and POTS! by mother_reincarnated · · Score: 1

      I think you guys are confused. ISDN uses the D channel for out of band signalling, the B channels are both 64kbps clear...

    8. Re:Acoustic coupler era and POTS! by Brett+Buck · · Score: 4, Interesting

      Heck, I was using "56K" dialup until earlier this year. Even though it was 33,600. For most things I was doing, it was plenty fast enough. Only thing that killed it was OS X software updates, and the occasional twit who forgot that email is a *text* medium.

                Brett

    9. Re:Acoustic coupler era and POTS! by frieko · · Score: 1

      FTFWikipedia:
      The figure of 56 kbit/s is derived from its implementation using the same digital infrastructure used since the 1960s for digital telephony in the PSTN, which uses a PCM sampling rate of 8,000 Hz used with 8-bit sample encoding to encode analogue signals into a digital stream of 64,000 bit/s. However, in the T-carrier systems used in the U.S. and Canada, a technique called bit-robbing uses, in every sixth frame, the least significant bit in the time slot associated with the voice channel for Channel Associated Signaling (CAS). This effectively renders the lowest bit of the 8 speech bits unusable for data transmission, and so a 56 kbit/s line used only 7 of the 8 data bits in each sample period to send data, thus giving a data rate of 8000 Hz × 7 bits = 56 kbit/s.

    10. Re:Acoustic coupler era and POTS! by Bios_Hakr · · Score: 1

      My understanding is that only applies to a single DS-0 inside the frame or superframe. I think it's channels 0 and 12 for a standard T-1.

      In any event, 2B+D has an additional, out of band, signaling channel to cover this.

      --
      I'd rather you do it wrong, than for me to have to do it at all.
    11. Re:Acoustic coupler era and POTS! by X0563511 · · Score: 1

      No kidding! You could even download respectably sized files.... just no instant gratification.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    12. Re:Acoustic coupler era and POTS! by arth1 · · Score: 4, Informative

      No, in the US T1 system, each B channel is 56 kbps, due to the entire T1 using inband signalling through bit-robbing (see above referenced article), and not out-of-band signalling as in the E1 system used elsewhere. At least that was the case back when ISDN became popular in the early-to-mid 90s.
      The 16 kbps data channel for each B pair is independent of this.

      T1 PRI = 23 * 56 kbps DS0 (+ 16 kbps), US BRI = 2 * 56 kbps (+ 16 kbps)
      E1 PRI = 23 * 64 kbps DS0 (+ 16 kbps), EU BRI = 2 * 64 kbps (+ 16 kbps)

    13. Re:Acoustic coupler era and POTS! by mother_reincarnated · · Score: 3, Informative

      Again, you're confusing things. Actually confusing a couple things:

      First:

      T1 != ISDN. The only time you got 56kbps on a B channel was when you were calling out of your exchange in an environment that still used RBS.

      Second, in the US:
      A PRI is 23B (64kbps) + 1 D (64kbps) and all the signaling happened on the D channel or 24B (2nd-nth PRI)

      A BRI is 2B (64kbps) + 1 D (16kbps) and all the signaling happened on the D channel.

      Thirdly, in Europe:
      A PRI is 30B (64kbps) + 1 D (64kbps)

      Fourthly:
      There is not a D channel per 'B pair' there is just a D channel.

      If Wikipedia says something different it's, uhh, wrong. (But I think you're just misinterpreting it)

    14. Re:Acoustic coupler era and POTS! by pbjones · · Score: 1

      baud to bps included the stop bits etc, modems simply changed freqs to match the 1's and 0's. I think there is still an acoustic coupled modem in my cupboard, next to my IBM XT. The big shift was from FSK to QAM, then the bps really started to climb.

      --
      There was an unknown error in the submission.
    15. Re:Acoustic coupler era and POTS! by DarthBart · · Score: 1

      It does? 2 (B)earer channels for data and the (D) channel is X.25 packet and call set up & tear down. There's no "out of band".

    16. Re:Acoustic coupler era and POTS! by DarthBart · · Score: 3, Interesting

      If you have multiple PRIs, you can run NFAS (Non-facility associated signalling). You run 24B+0D on all but a handful of circuits, 23B+1D on those. The D channel carries enough signalling for call setup & tear down on all the PRIs in the NFAS group. That way, you're gaining an extra B channel per circuit.

    17. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      You entirely missed the 14400 and 28800 era. Imposter.

    18. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      If I could just nitpick for a moment, I think you forgot 28800, which was the fastest for a while.

    19. Re:Acoustic coupler era and POTS! by Nkwe · · Score: 5, Funny

      Sadly, your comment contains more actual information, and is better written, than the 'article.'

      You read the articles?

      Only in Playboy

    20. Re:Acoustic coupler era and POTS! by mlts · · Score: 4, Interesting

      One of the better innovations with modems, but one that was not heralded much was MNP3. MNP5 is a superset and offered compression which helped things, but MNP3 dealt away with the aggravation of line noise, and this by itself made a lot of difference in file transfers.

      ISDN did dent modem sales, but at the time in the mid 1990s, ISDN was fairly expensive (about $150-$300 a month.) However, it had the advantage of very low latency. Modems (and mom/pop ISPs) really didn't die off until cable and DSL connections became both widespread and decently inexpensive.

      Ironically in the US, modems have not been driven away completely. There are still plenty of areas that do not have cable or DSL access. Sometimes using a cellular "modem" [1] provides a solution, but sometimes that doesn't work (especially in hilly areas). Also, some people just don't do much with broadband, so they have downgraded to dialup because it is cheap.

      [1]: Technically it isn't a modem, but a CSU/DSU. However, most people call the USB devices that plug into a laptop modems, even though they do no analog modulation or demodulation.

    21. Re:Acoustic coupler era and POTS! by phantomfive · · Score: 1

      Another thing that should be mentioned is that when downloading at 300 baud, the text comes onto the screen much slower than you can read. Now when I think about it, I feel amazed that I tolerated it, but it seemed exciting at the time.

      --
      Qxe4
    22. Re:Acoustic coupler era and POTS! by fm6 · · Score: 3, Interesting

      n the mid-90s, we got BRI (ISDN, 2*64 kbps in most of the world, 2*56 kbps in the US). Which pretty much ended the modem era, except for in the US and UK, where 56 kbps POTS modems reigned supreme until well after the millennium.

      When the U.S operating companies started rolling out ISDN, I thought all my connection issues were history. But OCs still thought of themselves as regulated monopolies (they still do, really) and got the FCC to set high per-minute rates for ISDN usage — which pretty much destroyed any chance of ISDN being widely adopted. So we were stuck with the damn modems until DSL allowed us to sidestep the federal tariffs. And we still haven't caught up.

      I might be misremembering, but I'm pretty sure that US ISDN also had 64 kbps data ports. The 56 kbps limit was imposed on modems because the FCC experts thought that analog connections needed a safety margin to prevent crosstalk.

    23. Re:Acoustic coupler era and POTS! by uvajed_ekil · · Score: 4, Interesting

      Very well said. But you forgot about 14400 and 19200. Man, I sure was in heaven Christmas morning of 1992 or 1993 when I opened my Zoom 14.4k modem. Naturally it amazed me, and I thought there would never be anything much faster, aside from the "exotic" 19.2k modems that none of the local boards or my friends had. I think Zyxel and a USR model or two would do 16.8k. 1200 and 2400 were never acceptable again, though 14.4k meant speed to spare! Then a year or two later we thought 28.8k was near a theoretical speed limit for twisted-pair copper, 33.6k used dirty tricks, 56k was unrealistic and not possible for a BBS, 64k/128k ISDN was crazy expensive, and ADSL and SDSL were futuristic 21st century vaporware. Today's DSL and cable speeds were unfathomable 15 years ago, not to mention optical fiber which seems to be getting rolled out everywhere except where I live.

      --
      This is a hacked account, for which the owner can not be held responsible.
    24. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 5, Interesting

      I must be getting old. I still think in terms of, "acoustic couplers... 6502's... that was a few years ago." Doesn't seem that long ago really. Now maybe most people reading this weren't *born* yet at the time.

      Soon enough though folks like us will die off, and there will be a generation which has always been connected - nonstop, rather than having to dial things up, doesn't remember the mainframe days, and thinks a 386 is an old CPU. I suppose it's the way of things. Doesn't make me feel any younger though! But what certainly seems true is that a much lower percentage of people now know the nuts and bolts of how things work. I attribute this to several things:

      (1) It's harder to *get at* the nuts an bolts now- there are far more layers of abstraction in the way.

      (2) Back in the 70's and much of the 80's, home computers were owned by hobbyists, not Joe Sixpack, so most people involved were inclined towards curiosity about how shit worked. Now there still some - more on an absolute scale, but fewer percentage wise.

      (3) Now it's possible to use a computer without knowing anything theoretical. Back then, it was not, so it was required that people were technical.

      It's not a bad thing generally, and I'm glad so much of humanity is now connected, but there *was* something lost as well (Eternal September, loss of the original net culture, spam, widespread abuse of various protocols, a trend towards a computing monoculture...).

    25. Re:Acoustic coupler era and POTS! by DrMrLordX · · Score: 2, Interesting

      And 33.6. I had a 33.6 modem and I swear it provided better latency than any 56k modem I used afterwards. The other thing I hated about 56k modems is that they were only 56k down, not up; a 33.6 could do 33.6 bi-directional whereas a 56k could do 56k down or 28.8k bidirectional, or something like that. All I know is uploading anything significant on a 56k would kill download speed. My 33.6 was much more consistent, even if it couldn't achieve the hallowed 7kBps download.

      Oh yeah, there was also the whole V.FC vs v.34 thing on the 28.8/33.6 modems, where basically, V.FC sucked.

    26. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      Pics or it didn't happen in PlayBoy!

    27. Re:Acoustic coupler era and POTS! by noidentity · · Score: 1

      Ahh yes, I remember going from 2400 to 14400 (Supra), was pure awesome at the time.

    28. Re:Acoustic coupler era and POTS! by DigiShaman · · Score: 2, Interesting

      I started out with a 28.8K USR, then moved up to 33.6 and then USR X2 56k. Of course, those 56k modems only worked if you were connected to an ISP with proper equipment on their end. Even so, I got a 48K connection receive while the upstream was always limited to 33.6 speeds at best.

      Oh, and those WinModems are worthless with DOS games. At the time I didn't know any better, but found out shortly when troubleshooting Duke Nukem 3D. Back then, support was limited and the Internet was just a novelty.

      --
      Life is not for the lazy.
    29. Re:Acoustic coupler era and POTS! by Madsy · · Score: 1

      Did you forget the 28800 baud modem? :-)

    30. Re:Acoustic coupler era and POTS! by DarkProphet · · Score: 4, Interesting

      Ahh, and not only exciting, but would only later be known as 'epic'. My first foray into the internet was on our school library's VT100 terminals which were primarily used for queuing up inter-library loan requests. This was in 1995. Getting Mortal Kombat cheat codes and fatalities was never so easy. I also remember printing off the Duke Nukem 3D build editor docs on that same machine, but I think that was a bit later on. Shortly after my church confirmation class took a trip to a ''church'' college which had machines which displayed the WWW in all its graphical glory. They were running Netscape (probably 2.0 or 3.0, I didn't bother to check at the time). I was smitten. Not long after that, our town got local dialup access, and at age 15 I convinced my mom to let me pay for and install a second phone line for it. I soon learned enough HTML and Javascript to 'hack' the Perl/CGI chat room I used to fool around in -- giving myself full administrative ability. W00t! The coolest damned thing I ever did was play my chatroom buddy in Quake II -- ON THE INTERNET!

      To this day, there is nothing more exciting than hearing that 14.4 modem chirp off the connection sequence. Sometimes I kinda wish my DSL connection made that same noise. I'll always treasure those halcyon days. Thank you, Mr. modem inventors. Mine served me well far longer than it should have, mostly reliably, and is the singlemost important reason I ever became a computer geek. Thanks a million! Now who is calling me at five in the morn--

      -AT++[NO CARRIER]

      --
      What could possibly hurt the security of the American people more than giving our own government the ability to hide its
    31. Re:Acoustic coupler era and POTS! by sharkman67 · · Score: 1

      Was this even an article? I'm really surprised that there was no mention of the Telebit Trailblazer or AppleCat? Both extraordinary modems that I had the honor of owning.

      Lame.

    32. Re:Acoustic coupler era and POTS! by nurb432 · · Score: 1

      Thankfully i started my online life at 300, but yes acoustic.. fond (!) memories of dialing the ( rotary ) phone, wait for an answer, then slam the stupid handset into the cups real fast before the receiving end gave up..

      Then remembering you forgot to turn off 'call waiting', and prayed that no one would call before your transmission was complete..

      --
      ---- Booth was a patriot ----
    33. Re:Acoustic coupler era and POTS! by drinkypoo · · Score: 1

      The speed of a B channel depends on the signalling type. In some markets, you could only get 56k per channel; in others, you could get the full 64k. I'm no telco expert, but IIRC at the time it had something to do with which switch you had. Now that we've upgraded more or less all the legacy switches in the USA and sold them to Mexico it's no longer a problem :)

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    34. Re:Acoustic coupler era and POTS! by drinkypoo · · Score: 1

      It was the USR Courier HST modem that would do 19.2kbps. I seem to recall there was a HST+2400 bps modem, and then the "Dual Standard" HST+9600 bps, later firmware-updated to support 14.4kbps. But I could be totally wrong and I'm too lazy to look it up. I mostly want to forget those times. I remember my Microcom 2400bps+MNP5 all too well. :( IIRC if you had a super badassed BBS then USR would kick you the Dual Standard modems at a not-unreasonable price. Only rich kids (or professionally-employed adults) could afford an HST modem, but few enough people had them to where it hardly mattered. I suspect some kids got them down in Juarez, if you know what I mean... a little floppy flipping

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    35. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      The wireless USB modems do send an analogue signal over the air, although it probably isn't appropriate to call spread spectrum coding/decoding modulation/demodulation. However, it is quite interesting how they still use the old modem AT command set to interface with computers.

    36. Re:Acoustic coupler era and POTS! by Glonoinha · · Score: 1

      Shit. Thanks dude, now I feel old. I've personally owned every device you just mentioned except the 110 baud and the Trailblazer.
      300 baud wasn't so bad when your screen was only 25 characters wide.

      I can still tell what speed a modem connects just by listening, right up through about 38.4k. I used to be able to tell whether the connect was going to be worth keeping (ie, over 40k) on my 57.6 just by listening.

      --
      Glonoinha the MebiByte Slayer
    37. Re:Acoustic coupler era and POTS! by hitmark · · Score: 1

      iirc, there are some that have wired a dsl router or similar so that it will play a recording of the modem connection sounds...

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    38. Re:Acoustic coupler era and POTS! by ggendel · · Score: 2, Interesting

      I developed a 300 baud modem for the (then) brand new RCA data terminal back around 1980. The trickiest part of this thing was that the filters had to be designed and made from discrete components.

      The plant manager saw my design which had precision components and he had a fit. His instructions were, "Use the components we have in the stock room". He also saw the line transformer and he said, "This is the age of semiconductors, get rid of that transformer".

      I spent weeks researching how to replace that transformer with a semiconductor device that wouldn't distort the signal, operate bilaterally (in and out), and withstand the the 10,000 volt pulse that the FCC required for testing. I finally found such a beast, so I gave the manager a choice... Use the 6 cent transformer, or replace it with a $40 semiconductor.

      My complaints about using non-precision components fell on deaf ears, so I figured the only way to prove that this wouldn't work would be to build a prototype and show that it would fail. To my dismay the first prototype worked flawlessly. I was told to build 10 more for FCC testing but not a single one of these worked even though the frequency response curves were all on the mark. I finally discovered that the phase response was a mess. I finally convinced them to use precision components.

    39. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      After reading this thread I can now see why Scott Adams packed it all in and started to draw cartoons instead.

    40. Re:Acoustic coupler era and POTS! by b1t+r0t · · Score: 1

      The 1200/75 modem was a workhorse for a long time

      But not in the United States. We pretty much went directly from 300 baud to 1200 baud full duplex (212) in the States in the heyday of BBSes in the early '80s. I do recall reading that 1200/75 was used for those French terminals (Minitel?), so that probably helped to make it more popular in Europe.

      Of course one of the problems with 1200/75 is that the other end has to be 75/1200, so it's more useful for a commercial online information service than for a BBS, especially one with a warez section.

      --

      --
      "Open source is good." - Steve Jobs
      "Open source is evil." - Microsoft
    41. Re:Acoustic coupler era and POTS! by hollywench · · Score: 1
      I'd say that generation is already here. My three kids were born into a house that was already online. I got my first computer & modem when I was 17, way back in 1979. (a used VIC-20, thank you. Loved it.) Getting online with that was fun, considering the limit of 40 characters per line on the TV screen.. Got married in 83, etc etc. Early sometime in 1986, I can remember taking my 2nd child in his baby carrier into a local store (he was 3 months old at the time..) to buy what was going to be our third computer.. a shiny new Amiga 500. I walked out of the store with his carrier in one hand and that huge box in the other.. :) Went home, unpacked it, and the first thing I did was get online with it. FidoNet and AmigaNet were a large part of my life for so many years. :) In memory of running a BBS and playing on them, my most favorite cell phone ringtone to this day is a fax modem squeal. That's the one ringtone I can't miss hearing, even if I'm somewhere noisy or whatever.. that modem tone gets my attention like nothing else will. Just like the modem during ZMH (Zone Mail Hour) would. :)

      I met my second husband via FidoNet too, because of that Amiga. best thing I ever downloaded. ;)

      /nostalgic geek mode=OFF

    42. Re:Acoustic coupler era and POTS! by fm6 · · Score: 1

      Now that we've upgraded more or less all the legacy switches in the USA and sold them to Mexico it's no longer a problem :)

      Kewl! So now I can get a full 128K out of a technology that only costs twice as much as my 1M DSL! ;)

    43. Re:Acoustic coupler era and POTS! by dissy · · Score: 1

      No, in the US T1 system, each B channel is 56 kbps, due to the entire T1 using inband signalling through bit-robbing (see above referenced article), and not out-of-band signalling as in the E1 system used elsewhere. At least that was the case back when ISDN became popular in the early-to-mid 90s.
      The 16 kbps data channel for each B pair is independent of this

      Actually a PRI could be configured either way.
      The raw DS0 line gives you 24 'B channels' that are 64k each.

      One configuration is to use one whole B channel for signaling, leaving you with 23 channels of 64k
      ISDN dialup typically used this configuration to get the full 64/128k ISDN customers expected.

      For analog dialup however, the PRI can be configured as 24 channels of 56k each. This is the bit robbing you are speaking of. For analog 56k dialups, this is a better option because the extra bandwidth will not be used, and you get a full extra channel out of it.

      But if you wanted to support 64k or full 128k BRI, you just get one less channel and can only hold 23 calls over the DS0 instead of 24.

      At the ISP I worked for back then, we had two banks of modems. Two PRIs as 23x 64k channels (46 total) for ISDN customers, and four PRIs as 24x 56k for our modem dialups (96 total then)
      Each bank had its own phone number, but pooled within the bank.

      The only thing that makes a DS0 into a T1 is when the DS0 is provisioned as 24x 64k channels with NO signaling. This is called a T1 now, and as it is point to point it does not need any signaling, so you don't lose any channels and get your full 1.44mbit.

    44. Re:Acoustic coupler era and POTS! by b1t+r0t · · Score: 1

      HST was originally 9600, with a later upgrade to 16.8k. But it lost to V.32 because USR kept it as a "premium" feature in Courier modems and didn't include it at all in their Sportster modems. The first nail in the coffin was "V.32terbo" at 19.2k, and by the time of V.34 28.8k, HST was essentially dead.

      Of course the coolest Couriers to have were the ones with the little gold plate that said "NOT FOR RESALE" or something like that, because they were bought by sysops. I still have a small stack of assorted Couriers, some my original, others found at thrift stores back in the '90s, just in case I need one. I even applied the "enable HST" hack on some of the ones I found at thrift stores, and I remember that I had to patch the Russian-written downloader program to increase a delay loop to get it to work on my Tandy 1000.

      --

      --
      "Open source is good." - Steve Jobs
      "Open source is evil." - Microsoft
    45. Re:Acoustic coupler era and POTS! by trapnest · · Score: 1

      10kV pulse? Over a phone line, or what?
      I missed a lot of this technology (My first connection was a 33k USR parallel port modem) but I am still curious.

    46. Re:Acoustic coupler era and POTS! by Thing+1 · · Score: 1

      You had call waiting before you had button dialing? Not how I remember it.

      --
      I feel fantastic, and I'm still alive.
    47. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      Uh, slight correction on the ISDN speeds. Yes, even in the US you could get 2*64k. But if your phone company was incompetent, they would route your ISDN through a voice trunk line and it would drop to 2*56k. If you spent hours on the phone with them, they would fix the problem and route your call properly, and you'd have 2*64k again.

    48. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 1, Interesting

      Something doesn't agree with my experience here.

      In the late 1990's, I had a dedicated dual channel ISDN line to my ISP. For a few months after it was installed, things were great - I had all 64k of both channels. Then, I noticed performance issues. Further inspection noted that at some times, ONE of the channels would drop to 56K... at other times, BOTH channels would drop to 56k. Yet other times, they both had 64k.

      After exhaustive dialog between the phone company and ISP, the phone company found that a trunk line between the ISP's long distance provider and my phone company was almost at capacity (64 channels of 64k each). When the line got filled to capacity, my ISDN call got routed to a voice-only trunk line, the channels of which were limited to 56k.

      So yeah, I'm in the US (Ohio) and I did get full 64k on my ISDN line.

    49. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      I never heard of 38400. You mean 33.6k. Unless things were different on your planet.
      Also, the high speed modems don't have the concept of "channels", where did you get that from? A "baud" is a symbol, a symbol can represent more than one bit.
      You're so off base I don't even know where to begin. Are you drunk, trolling, or just stupid? Are you one of those people who makes stuff, then never checks convinced he is correct and then repeats the made-up stuff with authority?
      http://en.wikipedia.org/wiki/56_kbit/s

      And how is the modem era ended? How are you connecting to the net now?

    50. Re:Acoustic coupler era and POTS! by nurb432 · · Score: 1

      I only had one 'acoustic cup' compatible phone as the 'trimline' button phones that i also had weren't shaped properly.

      So i was stuck :)

      --
      ---- Booth was a patriot ----
    51. Re:Acoustic coupler era and POTS! by ggendel · · Score: 1

      Yes. The FCC required that any device connected to the POTS line could withstand a lightning strike that created a 10kV pulse down the line.

    52. Re:Acoustic coupler era and POTS! by cusco · · Score: 4, Interesting

      It's not just computers, it's practically everything technological. When I was in high school in the '70s the vast majority of people who weren't swimming in money worked on our own cars, installed our own stereos, hooked up our own telephones, fixed our own appliances.

      For that matter, I guess it's more than just technology. Almost none of the kids graduating with my nephew know how to fix a leaking faucet, grow a tomato, or change the oil in their car. Hell, two thirds of them can't even cook rice.

      I can't help but feel that we've lost something valuable.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    53. Re:Acoustic coupler era and POTS! by drinkypoo · · Score: 1

      Kewl! So now I can get a full 128K out of a technology that only costs twice as much as my 1M DSL! ;)

      yes, that's pretty much the story... unless it actually costs more. AT&T wants $80/mo for the line alone, at least in PacBell territory. Then you have to find an ISP... But if the alternative is paying per-mile charges for a T1, it makes sense if it's enough bandwidth for your application.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    54. Re:Acoustic coupler era and POTS! by demonlapin · · Score: 1

      The worst was when I went to college in the fall of '93. I got used to connecting to local boards at 14.4k... but the college's access consisted of a bank of eight 2400 bps modems wired to a 56k leased line uplink. No PPP/SLIP, either, so any files that were downloaded had to be to the university's machine. There were two ways to get files: small ones were retrieved by zmodem, large ones by going down to the computer lab and sticking floppies in the NeXTs. Then, two years later, we had ethernet in the dorms... it was a bit of a change, you might say.

    55. Re:Acoustic coupler era and POTS! by temojen · · Score: 1

      I had a BBS run on a 2400bps modem at the same time as all the others in town had 9600 and disallowed connections below 2400. My board allowed any speed. The other sysops were trying to convince me to get a 9600 and forbid 1200 and below. My position was that everyone got 30 minutes anyways, and there weren't any files to transfer, so why would I care how many bits they get.

      I also had people in town who thought I must have really good porn since the line was always busy and all there appeared to be was one instance each of BRE and TW2002, two grafitti walls, and local messaging. Truth was I just had a bunch of people on 300 and 1200 bps modems who wanted to play BRE and TW2002 and used all their turns every day.

    56. Re:Acoustic coupler era and POTS! by antdude · · Score: 1

      And if your phone company and lines can handle that fast speed. On 56k, 33.6k, etc. and with good and cheap dial-up modems in college and at home, I could only connect 24000 to 31200 at about 3 KB/sec average (datas already compresed) with BBS' and Internet on GTE and Verizon. Even today is still like that, but mostly at 28800. :(

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    57. Re:Acoustic coupler era and POTS! by trapnest · · Score: 1

      Wow. Thank you.

    58. Re:Acoustic coupler era and POTS! by oasisbob · · Score: 1

      and the occasional twit who forgot that email is a *text* medium.

      Not since 1996 (and probably earlier) when RFC 2045 was written.

      The last century called, they want their Mutt-grasping curmudgeon back.

    59. Re:Acoustic coupler era and POTS! by ChrisMaple · · Score: 1

      I lose DSL about 3 times a year for a day or more at a time. The POTS modem is a reliable backup during those periods; I'm delighted that my ISP keeps it going.

      --
      Contribute to civilization: ari.aynrand.org/donate
    60. Re:Acoustic coupler era and POTS! by haruchai · · Score: 1

      If you thought latency on a 56k line was bad, give modem channel bonding a try. Remember those "shotgun" modems? Worst idea ever.
      If you could get the channels to bond - and stay that way - the latency seemed to be at least 5 times higher than a standard analog link.
      My ISP at the time had a single dial-in number per geographic area but might have had as many as a dozen POPs, with dozens of modem
      racks in each - which was fine for standard single-link analog but the Multilink PPP behind the modem channel bonding only seem to work
      "reliably" ( ie barely ) if you could get both your calls to terminate on the same modem bank.

      Good luck with that for a large ISP in a big city. The few times I managed to get shotgunning to work at all, I had to make long-distance calls to some small-ass suburb where I knew there was only a single rack in the POP. Even then, it wasn't worth it.

      I've heard a lot of bitching about DSL over the years but it was a big, yet still affordable, step-up from dialup for those who couldn't afford
      a T1 to the home and was still significantly cheaper (and faster) than ISDN

      --
      Pain is merely failure leaving the body
    61. Re:Acoustic coupler era and POTS! by VoltageX · · Score: 1

      Come out to the bush in Australia, where 28.8k links can still be found where the telephone lines are bad enough. Luckily the national telephone monopoly has started rolling out HSPA services, although on a different band to its competitors so only its equipment will work...

      --
      "Anonymous could not immediately be reached for further comment." - International Business Times
    62. Re:Acoustic coupler era and POTS! by swrider · · Score: 2, Interesting

      Agreed. I almost registered on the site to bemoan the poor quality of the article and berate the author for doing such a shoddy job. But then I figured that I would just be feeding that beast, and they don't deserve it. How could anyone who ever managed a UUCP site in the late 1980's forget the TeleBit Trailblazers? Yet the article made no mention of the Trailblazers or even trellis encoding. I loved the fact that the Trailblazers could give me a graph of my phone lines at the various frequencies.

    63. Re:Acoustic coupler era and POTS! by Kvasio · · Score: 1

      Remember those "shotgun" modems? Worst idea ever.

      Apparently, you were not around, when win-modems appeared.

    64. Re:Acoustic coupler era and POTS! by fm6 · · Score: 1

      But if the alternative is paying per-mile charges for a T1, it makes sense if it's enough bandwidth for your application.

      And assuming you have to serve the application onsite. I can't imagine a situation in which colo or cloud computing wouldn't be just as effective, more scalable, and cheaper.

    65. Re:Acoustic coupler era and POTS! by TClevenger · · Score: 1

      The fastest HST modems got up to 16,800 bps. Since they had v.42bis compression, you obviously wanted to have your PC connecting to them at a faster rate to handle the burst of compressed data. To maintain compatibility with some terminals or BBS software that couldn't handle a connect string like "CONNECT 16800/ARQ/HST", you could just have it report the DTE speed, i.e. "CONNECT 19200". A lot of people confused this with actually connecting at 19,200 bps.

      I was one of the first kids on the block, at about 16, to get a Courier HST 14,400 modem, through sheer luck. (Guy sold it for cheap because it would overheat and fail and was out of warranty, but USR took pity on me and swapped it out for free for a nice HST 16,800. Great folks.)

    66. Re:Acoustic coupler era and POTS! by Lord+of+Hyphens · · Score: 1

      If they manage college, they'll probably learn how to cook rice real quick.

      --
      "I've spent my whole life figuring out crazy ways to do things. It'll work." -- Montgomery Scott, "Relics"
    67. Re:Acoustic coupler era and POTS! by Tablizer · · Score: 1

      The problem is that more and more websites are filling up with bloated junk that dailup speed just cannot practically handle. And if you turn off graphics and flash, then certain graphical buttons and navigation aides were often invisible. You can get away with it if you only stick to certain lean sites, but outside of those, it's a bear. (I had to use dial-up for a while not too long ago after we first moved in to a new house.)

    68. Re:Acoustic coupler era and POTS! by winkydink · · Score: 1

      Any history of modems that skips the Telebit Trailblazer is BS. Pure and simple. They were like $1k and every geek had to have one. I was at MIPS back in the day and every engineer got one with a Wyse 60 to take home (free work don't ya know :).

      --

      "I'd rather be a lightning rod than a seismometer." -Ken Kesey

    69. Re:Acoustic coupler era and POTS! by Tablizer · · Score: 1

      Sometimes I kinda wish my DSL connection made that same noise. I'll always treasure those halcyon days.

      To me it sounded like a cat family caught in a gas-powered sander. If that's your thing...
         

    70. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      On typing speed, you probably mean 75 bits per second (how many characters per second that is depends on start/stop bits, parity, 7 vs. 8-bit characters, but generally in the 7-10 range).

      You're also missing quite a few intermediate standards. For quite some time, 14.4k was the most common "fast" modem, and 28.8k was also relatively common for a while. These didn't correspond to standard serial connection rates but were among the most common nominal rates for modems. Anyway, from 2400 (where it was sometimes present and sometimes not) up, you had error correction and compression making the nominal baud rate not that relevant (and you'd generally run the serial link between the modem and computer at a higher bit rate).

    71. Re:Acoustic coupler era and POTS! by Namlak · · Score: 1

      (1) It's harder to *get at* the nuts an bolts now- there are far more layers of abstraction in the way.

      (2) Back in the 70's and much of the 80's, home computers were owned by hobbyists, not Joe Sixpack, so most people involved were inclined towards curiosity about how shit worked. Now there still some - more on an absolute scale, but fewer percentage wise.

      (3) Now it's possible to use a computer without knowing anything theoretical. Back then, it was not, so it was required that people were technical.

      I'e been reading about all these neat projects about microcontrollers in the last few years and in the last month, I've gotten my new AVR dev board up and running, a fun first project on the breadboard, and I'm re-aquainting myself with C. What great fun it is to be back to programming "on the hardware" so-to-speak. I'm rediscovering just how really fast 4MHz can be. The day job/career has evolved more and more towards the business side of things and just no longer feels fascinating or even interesting in many ways. And when it is time to get into code, I'm not really learning new, clever, interesting ways to accomplish something, I'm learning yet another arbitrary framework or library - which I have to in order to keep up in the job market.

      I also noticed that in the late 90's the answers to my typical "get to know you" questions when interviewing job candidates changed from "I've always been interested in electronics/computers/technology/science growing up" to "My high school counselor said there are good jobs in computers, so I took some classes ".

      I've also noticed that people in the workforce are reluctant to apply themselves to learning office suites. Back in the DOS/Word Perfect days, people would take classes at night school to "learn computers" because it was becoming evident that they would need these skills in their jobs soon. Now I see that since most people haev computers with Windows at home, they all think they "know computers" but cannot find a file twice, can't map a network drive, and constantly go to a local expert rather than look in Help in their application.

    72. Re:Acoustic coupler era and POTS! by operagost · · Score: 1

      I'm not aware of any 38.4Kbps modem. Nyquist theorem doesn't allow for greater than about 33.6 with a purely analog connection. You could set your port speed to 38.4 to accommodate compression. I also don't know whether there was a 4800 bps modem, but the article does and a 9600 bps modem could drop down to 4800 if needed. Therefore, it wasn't "just compression".

      --

      Gamingmuseum.com: Give your 3D accelerator a rest.
    73. Re:Acoustic coupler era and POTS! by operagost · · Score: 1

      Your memory is slightly off. The VIC-20 came out in 1980/81 (I had one, too). It also had only 22 characters on screen, unless you had the special terminal cartridge. Roughin' it!

      --

      Gamingmuseum.com: Give your 3D accelerator a rest.
    74. Re:Acoustic coupler era and POTS! by amplex · · Score: 1

      But what certainly seems true is that a much lower percentage of people now know the nuts and bolts of how things work. I attribute this to several things:

      (1) It's harder to *get at* the nuts an bolts now- there are far more layers of abstraction in the way.

      You think a much lower percentage NOW know how systems work? Are you serious? Back in 1980 it's maybe .00001% of the total population or less that truly understand fundamental electricity, how squarewaves flow through chips turning things off and on in sequence, on certain pins at certain rates to achieve certain functions, programming, etc.. mostly because of the cost/obscurity of these systems, and you pretty much had to be a scientist to find practical use in one. Now you can throw a rock out your window and likely hit someone who understands these concepts (maybe because I live next to a state college its more likely).. Mainly because of widespread access to information and the internet, anyone halfway interested can learn how things work. But I highly doubt the percentage of people that understand bits and bytes is LESS than it was in 1980, one of the first years pc hardware became standardized. But I can see your point in that before the standardization, everyone who was interested DID have to know how it worked pretty much. Nowdays to 90% of the population its like, hey magician, fix my computer, do your voodoo tricks and make my internet work again... An old computer to me is still an Imsai, first one I ever laid eyes on. I can remember looking up at greenscreen/orange monochrome monitors for as long as I can remember. My first was an 8088 PC-XT so I might still be a youngun to you. But I guess you're right, when you had to buy your own chips/components, solder your boards together and program your own 'OS', you are more likely to understand the internals of a computer.

    75. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      I think a big reason no one does this anymore is the sheer complexity of modern things. I am fairly sure I could diagnose why a dishwasher from the 1970's is broken, at least on a component level, they are fairly simple things and don't involve any black box IC's or the like. Not only that, but they were built to be disassembled, at least a lot more so than today where manufacturers go out of their way to use esoteric screw heads to prevent you from getting at the insides. Also, the cost of most electronics these days makes it far more efficient to just replace the whole unit than spend time diagnosing and repairing it in most cases. Lots of little changes in society made lots of things that you speak of impractical- dirt cheap produce, and the annoyance of complying with environmental regulations make growing tomatoes and changing oil not worth my time.

      This is especially true with cars. You now need special equipment just to read the diagnostic information, and there are now many more lines of code working under your hood than nuts and bolts- and you don't have access to that code. By contrast, I owned a 2002 Kawasaki Ninja 250, which is carbureted and 99% unchanged in design since it first rolled off the assembly line in the 1980's, and it was easy to work on and diagnose (and also quite finicky and high maintenance- they don't make them like that anymore for a reason!).

      In general, at least in my area, most people have a lot more money than time, and they would rather spend the precious free time they have with their friends and family than spending an aggravating afternoon getting their hands cut up disassembling a dishwasher. Things change- your parents probably said the same thing about their sons and daughters not knowing how to darn a sock or field dress an animal.

      -K

    76. Re:Acoustic coupler era and POTS! by Anonymous Coward · · Score: 0

      Could be, it's been a while. :) I think maybe I confused the # of pixels in a line with my old TRS-80 Model III. I had one of those too. I've owned a LOT of PCs in my life. :D Must have have been late 1981 when I got the VIC, because it came with a VICmodem and those didn't come out til then. and man, oh man, did I get accessories with it. The guy I got it from had gotten lots of add on goodies for it. Some he built, others he traded for. One of the most useful was a homebrew 4 slot expansion board for the cartridge slot. It had pushbuttons down one side, so instead of playing "swap the cart" all the time, I just had to press a button. It also came with a cassette tape adapter (so it would hook up to a generic tape drive) and he threw in a bunch of games on cassette in addition to a boatload of game carts. I think I paid $75 for the whole lot. He'd bought it for his mom, because she'd heard about this new thing called a computer and wanted one.. and then she couldn't figure it out, so she gave it back to him. My mom worked with the lady and mentioned to her that I liked "that sort of crazy thing", so she told mom to have me call her son to buy it off him. He needed the money for something or another, and he had other projects going on.. I do remember that he had one hell of an impressive electronics workbench setup in his double garage.

      I'd been wanting a CoCo (the Radio Shack Color Computer) ever since they'd come out (oo! color!) but the VIC was too good a deal to pass up, even though it cost me three day's pay (I made maybe $3 an hour back then.. but for a 17 year old who lived at home and didn't have to pay rent, it was cool.) The good ol' days. :)

    77. Re:Acoustic coupler era and POTS! by hollywench · · Score: 1

      That is one hell of an astute observation. And you are right.

    78. Re:Acoustic coupler era and POTS! by haruchai · · Score: 1

      I was around and online long before that. Yes, the winmodem was a lousy idea but they were cheap (most were "free" since they were included with the PC) and some worked okay if your PC had enough horsepower.
      Even a laptop user could get an affordable hardware modem on a PC-Card. I don't recall too many winmodems on laptops - mine always were equipped with real modems.
      It did suck for Linux users but some enterprising coders did manage to whip up usable drivers for a number of models - if you were savvy and patient.
      But I'll know that I'm in Hell when I start hearing that the Mwave is making a comeback.

      --
      Pain is merely failure leaving the body
    79. Re:Acoustic coupler era and POTS! by alexo · · Score: 1

      [...] the occasional twit who forgot that email is a *text* medium

      A view commonly expressed by the occasional fossil who forgot that email stopped being a text-only medium almost two decades ago.

  3. Brings back memories by MichaelSmith · · Score: 5, Interesting

    I have mod points to burn but I have to post in here.

    The traffic system I worked on had 300 baud modems attached to cheap leased lines (soldered in, mostly). Two modems per card. 8 cards on a bytecraft backplane. Up to 128 modems on a 19 inch rack. Each modem had three LEDs (carrier, TX, RX) and at the speed the system operated you could see the poll/response from the regional controller to the sites and back. In the dark it was a thing of beauty. Computers of old.

    If something was wrong in the logic (say a checksum mismatch) then you could see it in the LEDs because one channel (slot) would not follow the nice pulse sequence. Several times I mucked up the checksums of a rack and took out a lot of sites. Maybe I shouldn't post about that...

    Going back in time my 6502 system had a modem for the cassette interface. I knew you could overclock the UART and FSK modem driver and I had dreams of using my uncles reel to reel hifi system for storage. Never happened. Though I did find that you could use the cassette player as a sound card of sorts by locking on REC and PLAY.

    1. Re:Brings back memories by Gordonjcp · · Score: 1

      The traffic system I worked on had 300 baud modems attached to cheap leased lines

      Trunked radio systems still communicate between radio sites and the central node using 1200 baud AFSK on four-wire leased lines. They're not cheap, though. You can tell how busy and how healthy a system is by the pattern of blinks on the TX/RX lights...

    2. Re:Brings back memories by ggendel · · Score: 1

      Which reminds me...

      The RCA 1800 family had an interesting feature... Every instruction took 8 clock cycles (with a few extended ones that took 12). This means that it was easy to, not only figure out how long a routine would take to run, but write routines to take up a specified time.

      In the RCA VIP (hobby) computer, the tape output was a frequency-shift keyed output that was driven by a software UART created by this technique. You could also program it to play music producing the appropriate frequency using a software timing loop. I wrote a few programs that did just the opposite... did frequency decomposition using the built-in zero-crossing detector for the tape interface (a poor man's spectrum analyzer).

      It was pretty amazing what could be done it 8k bytes of memory. :)

    3. Re:Brings back memories by MichaelSmith · · Score: 1

      It was pretty amazing what could be done it 8k bytes of memory. :)

      Oh for sure. I noticed at one point that the 1MHz clock for the 6502 was right in the AM band.

  4. Lady, there ain't nothin' so complicated... by dpbsmith · · Score: 5, Interesting

    In "The African Queen," Katherine Hepburn's character asks Humphrey Bogart's character to make a torpedo. Bogart's character says something to the effect that "Lady, there ain't nothing so complicated as the inside of a torpedo. It's got gyroscopes, compressed air chambers, compensating cylinders..."

    I remember once reading details about just how the signals in a 1200 bps modem worked... and modems at higher rates. It was just jaw-dropping how sophisticated it was. The reason why there was a distinction between "bps" and "baud" is that "baud" refers to the number of times per second the signal changes. Well, a 1200 bps modem only changes its signal 600 times a second... but it uses four different combinations of frequency and phase, so each signal combination signals two bits. That's bad enough, but the combinations literally increase exponentially. The 9600 bps modem actually requires the receiver to sense and distinguish sixteen different analog combinations (so that it can encode four bits at a time).

    At the time I figured they had to be close to the theoretical limit, which depends on the bandwidth and the noise level. A phone line is only good up to about 3000 Hz. so the 2400 baud rate of a 9600 bps modem is changing about as fast as it can. The rest depends on how noisy the line is.

    Theoretically, of course, you can signal at an infinite rate on a perfectly noise-free channel. Just send 3.141592653 volts on the end and measure it with a ten-digit digital voltmeter and, voila! You're sending ten digits at once. Except there aren't any ten-digit voltmeters.

    I was frankly flabbergasted when they managed to cram 56 kilobits per second into a phone line. Of course, the 56 kb modems never really ran at that speed--they were always falling back to lower speeds because the phone lines were too noisy. Then they added compression, which didn't do much good because the ZIP files and JPGs you were sending were already compressed. In reality they were trying to cram 56 kilobits of data into a 33 kilobit bag, but it was amazing that it even worked some of the time.

    But, lady, there ain't nothin' so complicated as the inside of a modem.

    1. Re:Lady, there ain't nothin' so complicated... by MountainMan99 · · Score: 2, Interesting

      You are somewhat understating the complexity of the 24-33k modems. Not only do they have high-level QAM modulations but there's probably the most sophisticated error correction coding in there out of any commercial products, even now. This was largely because the computing power was available (the input was only 8,000 samples per second) and the market would pay for it. There were lots of PhD theses and lots of patents involved in those designs. In contrast the 56k "modems" really just encode 256 levels per 1/8000 of a second (having to adapt to voltage gains and nonlinearities in the phone line make this far from trivial but it's intrinsically pretty simple).

    2. Re:Lady, there ain't nothin' so complicated... by noidentity · · Score: 1

      I regularly got 53333 bits per second connections over a phone line. And of course nowadays, the modulation schemes used are quite sophisticated, using all sorts of digital signal processing and high-order math.

    3. Re:Lady, there ain't nothin' so complicated... by hitmark · · Score: 1

      interestingly enough, it seems one is heading the same way with SSD. that is, each physical storage "unit" will have multiple states, so that one store multiple bit pr "unit".

      if it can scale the same way your describing modems, things should be interesting in a couple of years ;)

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    4. Re:Lady, there ain't nothin' so complicated... by Renraku · · Score: 1

      56k was the pinnacle of modem technology. The phone line could NOT support much more than 56k using standard dial-up technology. Of course you had your flex and you had your x2, you could sometimes get around 60k or even 70k if the end software supported it and you were linked on perfect noise free lines. The problem was that the dial-up technology was ancient. We had the technology in the 1970's to make ISP modem pools. It never really went farther than that, barring x2 and flex and incremental increases in speed. We had the technology, but not the knowledge.

      Then we hit a wall at 56k.

      We actually had to develop the technology for DSL. The idea was formed in the early 80's, but until we got pretty good with laser communications and making really fast switching circuits, we couldn't develop it. Now we have DSL that can get 10MBps by tacking on faster and faster components to both ends. Ultimately, we'll run into the same wall again. We'll have the idea for how to go faster, but not the technology. We'll have gold plated connectors on both sides, and oxidized wire zig-zagging between neon signs connecting the sides to each other. If we want to keep going with phone lines, we'll probably have to lay new lines or experience some major breakthrough in communications.

      --
      Job? I don't have time to get a job! Who will sit around and bitch about being broke and unemployed then?
    5. Re:Lady, there ain't nothin' so complicated... by tuxicle · · Score: 1

      Actually, the reason 56 k modems ran at 53.3k is because of restrictions on how much power they could transmit. Any more power than what they were limited to would cause unacceptable crosstalk with nearby lines in bundles.

      Also, isn't it possible to put more levels per transition by simply increasing power levels? This would mean that the 56k limit isn't an absolute max, it could theoretically be exceeded.

    6. Re:Lady, there ain't nothin' so complicated... by tuxicle · · Score: 1

      Didn't the 56k modems also require FEC? While PAM didn't require as much research as the various QAM/QPSK modes, the FEC algorithms were just as difficult as the older modems, IMO.

    7. Re:Lady, there ain't nothin' so complicated... by ChrisMaple · · Score: 1

      DSL over POTS lines is limited by the fact that high frequencies attenuate over distance. The higher the frequency, the shorter the distance. When the loss reaches about 40 dB, the signal has to be regenerated. The result is that for distances beyond a mile or two, repeaters are required for DSL over copper above 1 Mbit/sec. If you want to go faster when you're at the limit, you have to add more repeaters. This can go on almost indefinitely, but eventually other technologies (fiber) become more economical than trying to shove electrons down a twisted pair.

      --
      Contribute to civilization: ari.aynrand.org/donate
    8. Re:Lady, there ain't nothin' so complicated... by MountainMan99 · · Score: 1

      There is one hard limit, the analog line gets converted into a digital one with 256 levels and 8000 samples per second, thus 64,000 bits per second (not 64k) is all there is.

  5. As a child of the 80s... by HockeyPuck · · Score: 4, Informative

    The biggest problem with using modems was that you had to let everyone in the house know you were on the "modem". This meant, sticking post-it notes to every phone in the house, so that someone would tell you they needed to use the phone rather than just picking up the phone and dialing. You also couldn't tie up the phone for hours on end. There was very very few people that had an answering service (not an answering machine), like most do today with VOIP or CableCompany Provided Voice.

    You also had to remember, if you were one of those people that had it, disable call waiting, as many modems would drop the connection when a call waiting signal came through. I believe you had to add a *70 after the AT.. so you had something like:

    AT
    OK
    AT&F
    OK
    ATDT*70,,,867-5309
     
    RING.

    Today people can spend all day actively or passively (by leaving the computer on) online. Wit

    1. Re:As a child of the 80s... by MichaelSmith · · Score: 1

      Yeah I think the fact that ADSL, cable and 3G are always on is more important than the throughput. It makes it possible to plan to check something online from a single source, rather than grabbing information in advance and creating multiple copies.

    2. Re:As a child of the 80s... by HockeyPuck · · Score: 1

      It could be pretty much a disaster if you were playing an online game (Moria/Angbang etc) for quite a while (months) and if someone picked up the phone and you were disconnected, the BBS marked your character as dead. You had to message, I mean beg, the sysop to restore your character...

    3. Re:As a child of the 80s... by jamesh · · Score: 4, Insightful

      I was using dialup as little as 5 years ago. I was too far from the exchange for ADSL and ISDN was too expensive. Then Telstra introduced a plan where you paid about $100/month for BRI ISDN, giving you 2 64K channels. So I could be surfing at 128K unless someone wanted to use the phone in which case it would drop back to 64K. Better than my 33K modem! I assume Telstra did that to get one last little bit of life out of the ISDN infrastructure that nobody wanted anymore. They took that option away a few years ago, but fortunately I'm on ADSL now.

      My mum was using dialup as little as 12 months ago, until she got her two-way satellite connection. I find that the quality of modems these days is pretty awful. The people in Australia who use them typically use them because they are too far away from the exchange to get anything else, which means the signals are travelling over copper that could be decades old. You need a good modem which can adjust its impedance settings and keep tuning to the line characteristics for that to work at reasonable speeds.

    4. Re:As a child of the 80s... by aberkvam · · Score: 1

      I believe you had to add a *70 after the AT

      It depends on your telephone company. If you have Touch Tone, you usually have to use *70 or #70. If you still have pulse dialing, you have to use 1170.

      The commas are also important. Each comma adds a two-second pause (unless that's been modified in the modem's registers). Placing a comma or two after the *70 gives the telephone company time to give you a dial tone again so the phone number digits aren't lost.

    5. Re:As a child of the 80s... by rantingkitten · · Score: 4, Funny

      The biggest problem with using modems was that you had to let everyone in the house know you were on the "modem". This meant, sticking post-it notes to every phone in the house

      Ah, smart. My solution was to just bellow really loudly that everyone should stay off the phone so I could use the modem. This was usually followed by my parents telling me to use the intercom instead of yelling, or telling me to stop tying up the phones, or asking if I'd done my homework yet.

      You also couldn't tie up the phone for hours on end. There was very very few people that had an answering service ... You also had to remember, if you were one of those people that had it, disable call waiting

      No way man. The call-waiting thing was, to me, a feature. It meant that I could assure my parents that I wouldn't be tying up the phone lines and preventing people from calling. It was an enormous hassle when the thing disconnected but it meant my parents couldn't use that as an excuse to tell me not to use it.

      When I was 14 or so my parents felt comfortable enough to leave me home alone for four days when they went out of town. Still, they asked my uncle to check up on me periodically. Of course, since I didn't care about missing calls, I fired up the modem, logged on, and kept the call-waiting disabled. This meant that my uncle got a busy signal for a day and a half when he was trying to call to see how I was doing, until he finally drove over to see if I was just tying up the line with the modem, or if I was dead on the floor after a brutal break-in that knocked the phone off the hook.

      Pointless nostalgia now concluded. More pointless nostalgia on this topic may be found here if anyone's interested.

      --
      mirrorshades radio -- darkwave, industrial, futurepop, ebm.
    6. Re:As a child of the 80s... by Mr.+DOS · · Score: 3, Informative

      Pft, 5 years? 12 months? Just over two months here. I'm far enough away from any sort of digital lines that I've got to use a wireless line of sight service, and due to geography, they couldn't get a receiver installed for me until late October. By the end, I was desperate enough to have a second phone line and a Linux box running 24/7 to keep a connection established and fed into my router, which the other computers in the house connected to.

      You're right about modems being cheap in the wrong way these days. All the modems I have hanging around here are several years old. Unfortunately, I only have so-called "winmodems", but it's been awfully nice of Dell to ship Linuxant drivers for their Linux laptops, the binary modules of which can be used to replace the pared-down, feature limited ones included in the so-called "open" Linuxant packages.

            --- Mr. DOS

    7. Re:As a child of the 80s... by sunderland56 · · Score: 1

      Yeah I think the fact that ADSL, cable and 3G are always on is more important than the throughput.

      Not with Verizon 3G.... can't talk and surf at the same time on CDMA. A fact that AT&T is hammering home on their ads right now.

      Not as annoying as the old analog modem situation, but still an issue, especially if you tether your phone.

    8. Re:As a child of the 80s... by redneckHippe · · Score: 1

      Still miss Jenny eh? Me Too.

      --
      It'll quit hurtin' once the pain stops.
    9. Re:As a child of the 80s... by walshy007 · · Score: 1

      Serial port modems are still available around the place, and I would highly recommend picking one up if for nothing else than to have a reliable backup method of internet. Getting it to work with linux is easy also.

    10. Re:As a child of the 80s... by noidentity · · Score: 1

      I was using dialup until about 3 years ago, when I moved into a place that offered free WiFi. Regarding modem quality, I had repeated trouble with USR's modems. I believe it was because they didn't use an isolation transformer between the phone line and the modem electronics, resulting in voltage differences between the phone and ground causing noise. I once made an RS-232 isolator using a bunch of optocouplers, and that elimianted the problem. I later got some of the Diamond modems which properly used an isolation transformer, and never had a problem with them. Before I got them, I had actually preferred using my older 33.6 kbps USR modem, because it used a transformer as well. I couldn't believe that USR would skimp on their 56K modems like that, but there you go. BTW, their isolation scheme was cute: they coupled the phone line circuitry with the rest of the modem via small capacitors. Even the power supplied to the phone line portion was through a capacitor, presumably as a high-frequency square wave that the phone line side rectified. This eliminates any DC coupling, but doesn't help when the voltage potential between the phone side and ground changes suddenly, as was happening in my case.

    11. Re:As a child of the 80s... by Anonymous Coward · · Score: 0

      So he caught you with pants down around the ankles then spanknig to pr0n.

    12. Re:As a child of the 80s... by hitmark · · Score: 1

      indeed, being able to leave a computer connected for days on end, with no increasing expenses, is way more valuable then the speed that something can be downloaded or uploaded at.

      still, its also what makes spam and worm zombies work...

      i just think that we no longer have any sense of patience in this information overloaded world...

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    13. Re:As a child of the 80s... by TheRaven64 · · Score: 1

      My parent's solution to this was to get me my own phone line (they paid the line rental, but I had to pay for calls, and since this was the UK that meant online time cost a bit under 1p/minute). Unfortunately, we were right on the end of a rural street and the only way of getting an extra line was for BT to install a multiplexer, which halved the available bandwidth. Fine for voice, but it meant that you couldn't get more than about 26.4Kb/s from a MODEM. On the plus side, I was able to swap my 56K WinModem for a 28.8K serial port modem, although I swapped them back when I left home.

      Those WinModems were the reason I stayed with Windows for so long. All of the rest of my hardware worked with Linux and *BSD, but with a WinModem I couldn't connect to the Internet, and on a student budget I couldn't afford a hardware modem (they cost about what I spent on food in a fortnight back then).

      --
      I am TheRaven on Soylent News
    14. Re:As a child of the 80s... by trapnest · · Score: 1

      Anyone know if that's a limitation of CDMA or just Verizon's network?

      My only CDMA device is a cellular modem card from sprint and it's not quite possible to use that for voice calls. :P

    15. Re:As a child of the 80s... by Mr.+DOS · · Score: 1

      I have one, but it's 28.8. Actually, I have a 56k one too, but at the time I set up the Linux "gateway" (late summer 2008), it was in use elsewhere. It's a good suggestion, though.

            --- Mr. DOS

    16. Re:As a child of the 80s... by aztracker1 · · Score: 1

      Newegg has a few options for hardware modems, there's even a few that are on a bridged usb to serial interface that will work in a 2.6 linux kernel just fine. So you don't even REALLY need an external onboard serial port, or a bulky external. The "winmodem" era really just f'd a lot of things up.

      --
      Michael J. Ryan - tracker1.info
    17. Re:As a child of the 80s... by antdude · · Score: 1

      Nice rant! I agree with it too and it looks like we had the same computers too: http://alpha.zimage.com/~ant/antfarm/about/toys.html ... ;)

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    18. Re:As a child of the 80s... by tirerim · · Score: 1

      In my house, we had an index card on the fridge with "Phone In Use" on one side and "Phone Free" on the other. Occasionally someone would forget to check the card before making a call, but usually it worked pretty well.

    19. Re:As a child of the 80s... by CaptainJeff · · Score: 1

      Verizon uses a version of CDMA technology known as CDMA-2000. There are multiple ways you can deploy this and Verizon currently uses 1xEVDO (Evolution - Data Only). This means you can only have the data (1xEVDO) or voice channel in use at one time There is also 1xEVDV (Evolution - Data & Voice), which could put both voice and data on the same channel. I don't know of any deployments of 1xEVDV technology.

      Wikipedia has a good summary of this ... http://en.wikipedia.org/wiki/Evolution-Data_Optimized

    20. Re:As a child of the 80s... by trapnest · · Score: 1

      Mod parent Informative

    21. Re:As a child of the 80s... by molecular · · Score: 1

      When I tried setting up an older Samsung mobile to get network on my girlfriends ubuntu, I actually had to write some dial-up script because the thing just wouldn't work "out of the box the ubuntu way" (guessing the usb id of the mobile was missing from some db I was unable to locate). This really transported be back to the 80s for a second or two.
      Seems the AT command set is another nice example of "old stuff still in use".

  6. Written by someone born in the 90s? by sleeper0 · · Score: 4, Insightful

    Otherwise how could you think that v.32bis (14.4k) was introduced in 1980? I had to look it up to see what the hell they were on about, apparently the 1980 figure comes from a break through channel coding paper written in 1980 at IBM that didn't even get passed around for a few years. The reality is that the public had to wait nearly a decade before those techniques were out of the lab, and a few more years before a standard was ratified. Trying to figure out what niche this article fills - the wiki article on modems does a far better job at going over the same info. Hell, the author of TFA even put an old-time(tm) bw filter on a photo from the late 80s trying to make it seem like a shot with a laptop came from the 60s.

    1. Re:Written by someone born in the 90s? by Anonymous Coward · · Score: 0

      Yeah, and they include a picture of the USR Sportster! The Sportster! Every geek worth their salt knows that the USR Courier was the modem to own. The v.Everything... flash upgradable to 16.8, 21.6, 28.8, 33.6 and even 56k! That thing was a monster and I still love mine even though I haven't used it in a decade.

    2. Re:Written by someone born in the 90s? by HockeyPuck · · Score: 1

      It was also expensive as hell. Although, if I recall correctly, someone with a sportster could dial your courier at 56k, while the reverse was not true (sportster didn't support receiving calls at 56k).

    3. Re:Written by someone born in the 90s? by Phroggy · · Score: 2, Interesting

      You recall incorrectly. First of all, there can only be a single digital-to-analog conversion anywhere on the line for 56k to work, otherwise there's too much noise and you'll fall back to 33.6. The only way for 56k to work is if the ISP end is all digital - the signal comes in on a T1 line, and the modems are all digital. Secondly, 56k is only 56k downstream; uploading is still limited to 33.6 - so if you could connect two modems on a phone line that was clean enough for 56k to work, you couldn't download faster than the other modem could upload anyway. The digital modems used by ISPs are reversed, of course.

      Somebody correct me if I'm wrong about any of this. :-)

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
    4. Re:Written by someone born in the 90s? by aberkvam · · Score: 1

      The upload speed is not inherently limited to 33.6k. In fact, the V.92 standard allows up to 48k upload speeds but that increase comes at the cost of reduced download speeds.

    5. Re:Written by someone born in the 90s? by mlts · · Score: 1

      There is one other algorithm that the Courier had that the Sportster lacked: the USR proprietary algorithm, HST. On some nights, you could have a 28.8 with this technology, and it could go up to 40kbps. This was pre-56k on uncompressed data, so it was a big YMMV type of thing. However back then, it was cool to be able to download something overnight. It beat running to the university campus's 24 hour computer lab with a boxful of floppies and a pkzip splitter.

    6. Re:Written by someone born in the 90s? by DrMrLordX · · Score: 1

      I could never get 56k modems to retrain to 33.6, and 56k downloads always seemed to be hosed if any kind of uploading was necessary. So basically you had 56k (and due to line noise, frequently 48k instead) down or 28.8 down/up, but never 33.6 up.

      My trusty old 33.6 did 33.6 up/down in its sleep, all day long if necessary. I think I actually played EQ phase 2 beta over that thing . . . oh the memories.

    7. Re:Written by someone born in the 90s? by KingMotley · · Score: 1

      Actually, what he recalls was partially true. The courier line supported HST mode, which was able to do 19.2K+ when the sportster (and everyone else) was still doing 2400. The later sportsters were able to support V.32 (9600 baud), but still weren't able to do HST mode, which for the majority of people meant only being able to run at 2400 still, as most BBS's were doing HST only.

    8. Re:Written by someone born in the 90s? by Anonymous Coward · · Score: 0

      you were also obviously born in the 90s

    9. Re:Written by someone born in the 90s? by drinkypoo · · Score: 1

      My recollection was that 33.6k modems were a hack and that it only worked in one direction as well. But I'm willing to be totally wrong.

      We had a 28.8k CSLIP from circus.com to scruz.net "back in the day" using a Hayes Accura modem on each end. Rock solid all the time. Line errors resulted in rapid redials with little perceptible interruption, got to love pppd. One sad little 486SLC served so many http requests over that connection... and before that, a Turbo NeXT Slab. (I used to have the drinking games archive found at my profile URL there... it was a bit smaller then eh)

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    10. Re:Written by someone born in the 90s? by PhotoJim · · Score: 1

      I played World of Warcraft on dialup... last summer. I wanted to see if it could be done. It can. I'm sure it would annoy some. Walking around Stormwind is certainly painful, since there are always a lot of players around, but soloing is fine.

      This is with v.90 at my cottage, and a connection rate (according to my lovely US Robotics Courier v.90 v.Everything modem) of about 45333 bps down, 33600 bps up.

      You might ask why I tried it. The answer is that the latency of the EDGE cellular connection that I have there is absolutely painful (close to 500 ms at times compared to about 150-200 ms on v.90). Latency is more important than transfer rate for a lot of applications.

    11. Re:Written by someone born in the 90s? by Guysmiley777 · · Score: 1

      I remember playing the original Tribes multiplayer over a 56k modem, you'd get decent latency, around 100-150ms ping, and the modem connection could handle the bandwidth the network code used.

      --
      Coding with assembly is like playing with Legos. Coding an application in assembly is like building a car with Legos.
    12. Re:Written by someone born in the 90s? by trapnest · · Score: 1

      Ping and Latency are the same thing.

  7. Rubbish by Bios_Hakr · · Score: 3, Informative

    This should be the brief history of the personal PC modem.

    There was no mention of the tons of ISDN modems used until the late 90s.

    No mention of Codex or Pairgain devices. We had 64kbps, leased-line Codex modems humming along until, well, even today you'll find an odd one laying around. And T-1 Pairgains (not technically models) are still the best way to service outlying buildings on most campuses.

    I understand that not every article can be complete. But you really can't talk about the history of modems without Pairgain (now ADC) and Codex.

    --
    I'd rather you do it wrong, than for me to have to do it at all.
    1. Re:Rubbish by 0WaitState · · Score: 1

      Yep. The Codex 2264 was the shit. Until the 3260 came along. Still, if my life depended on a modem working and dealing with crappy lines and marginally compliant other parties I'd go with the 2264.

      --

      Remain calm! All is well!
  8. u geek by nthitz · · Score: 1

    I am not!

  9. Honebrew by Ozoner · · Score: 2, Interesting

    It's sad that only commercial modems are mentioned.

    I well remember building a series of homemade modems starting in the early '80s.

    There were many magazine articles for homebrew modems. Most of these derived from the FSK radio modems in widespread use by Hams at the time.

  10. The did have 1200 baud modems in the 1970s by NixieBunny · · Score: 1
    We had a 1200 baud modem in 1977 at the high school I attended in Tucson. It was a UDS201B, running over a leased 4-wire line. The terminal was a glass teletype made by a local company called TEC. It was blue and had the marvelous feature of CTRL-H to backspace.

    The computer was a DECsystem10. It was difficult to keep up with the blinding speed of the text scrolling past on the screen!

    --
    The determined Real Programmer can write Fortran programs in any language.
    1. Re:The did have 1200 baud modems in the 1970s by MichaelSmith · · Score: 1

      The computer was a DECsystem10

      Do you recall the type of serial interface cards it used? Or was the modem connected to the console? The PDP 11/84s and 11/83s I used used variants of the DZ11 MUX card which gave eight channels. If still have the octal interrupt vector and bus address sequence imprinted on my brain:

      • 160010 400
      • 160020 410
      • ..
    2. Re:The did have 1200 baud modems in the 1970s by mirix · · Score: 1

      Most (all?) terminals still support ^H.
      Or you just mean the lack of a backspace key sucked... or?

      --
      Sent from my PDP-11
    3. Re:The did have 1200 baud modems in the 1970s by NixieBunny · · Score: 1

      Yes, the lack of a backspace key sucked. And the lack of a TAB key etc. The thing had about as many keys as a mechanical typewriter.

      --
      The determined Real Programmer can write Fortran programs in any language.
    4. Re:The did have 1200 baud modems in the 1970s by NixieBunny · · Score: 1

      A DECsystem10 is a mainframe that does timesharing. I never saw the thing - it lived in the main school district office downtown.

      We did have a PDP 11/34 in the school. It had a DZ11 card, but we never got it to timeshare BASIC while I was there. Then IBM changed the world two years later.

      --
      The determined Real Programmer can write Fortran programs in any language.
    5. Re:The did have 1200 baud modems in the 1970s by MichaelSmith · · Score: 1

      I stuffed up. I was thinking PDP 10 where you wrote DECsystem10.

  11. What!? No mention of AppleCat? by Anonymous Coward · · Score: 1, Interesting

    The coolest modem of all time, and not even an honorable mention!?

    1. Re:What!? No mention of AppleCat? by AHuxley · · Score: 2, Informative

      Thanks for that.
      Just reading http://en.wikipedia.org/wiki/Novation_CAT
      Neat use of transfer bandwidth ideas :)

      --
      Domestic spying is now "Benign Information Gathering"
  12. Baud vs bps by gavron · · Score: 3, Interesting
    The article confuses baud rate and bps.

    No MODEM using the standards indicated has worked at any speed greater than 2400 baud. (That means 2400 transitions per second).

    Many MODEMs work at 4800, 9600, 14400, 56000 bps (bits per second, or pieces of digital information per second).

    What the MODEMs have done is use the ability to deliver multiple bits per such transition using FSK, QFSK,QAM, etc.

    MODEMs at 2400baud or less did not require flow control -- they worked at serial line speed, and did not buffer. Modems at 4800bps and higher did buffering and would do various flow-control techniques.

    Original MODEMs didn't start at 150baud, they started at 75baud, but lazy authors write lazy articles.

    The acoustic-coupler worked great at 300baud (TI Silent 700), miserably at 600baud, and terribly at 1200baud.

    Still this technology made itself obsolete. People were tying up VOICE channels on the PSTN switches and Telcos hated it, so they created DSL to take data off the voice channels.

    E

    P.S. The word MODEM (as the article indicates) represents MOdulatorDEModulator. Hence it should be capitalized. This is also try of enCOderDECoder (CODEC). Slightly less related yet as correct LASER and RADAR....

    1. Re:Baud vs bps by Anonymous Coward · · Score: 0

      Excuse me but there were MODEMs that 'started' under 75 baud. 50 baud certainly was a standard and is still supported by TTY. So much for the unlazy writers.

    2. Re:Baud vs bps by Anonymous Coward · · Score: 0

      Pedantic much?

    3. Re:Baud vs bps by aberkvam · · Score: 4, Insightful

      ]P.S. The word MODEM (as the article indicates) represents MOdulatorDEModulator. Hence it should be capitalized. This is also try of enCOderDECoder (CODEC). Slightly less related yet as correct LASER and RADAR....

      Generally when an acronym is pronounced as a single word and has entered general usage, it is not capitalized. These days scuba, laser, and radar are not capitalized. Nor is modem.

    4. Re:Baud vs bps by tuxicle · · Score: 1

      The terminology works if you're talking about the interface between the modem and computer. This would really be working at 9600, 19200 or 56000 baud, the baseband signalling used by RS232 did not use multi-level or phase coding to send multiple bits per transition.

    5. Re:Baud vs bps by DriedClexler · · Score: 4, Funny

      The word MODEM (as the article indicates) represents MOdulatorDEModulator. Hence it should be capitalized. This is also try of enCOderDECoder (CODEC). Slightly less related yet as correct LASER and RADAR....

      Okay, okay, fair point, but ...

      People were tying up VOICE channels

      Come on, that one you just made up.

      --
      Information theory is life. The rest is just the KL divergence.
    6. Re:Baud vs bps by gavron · · Score: 0
      You confuse mnemonic with acronym.

      MODEM is not an acronym.

      CODEC is not an acronym

      LASER, RADAR, and SCUBA are acronyms

      Best.

      E

    7. Re:Baud vs bps by gavron · · Score: 1
      No, the PSTN signaling (what the OP talked about when discussing MODEMs) would be used at 2400 baud. It never went higher. It went to higher bps based on multiple bits per transition. Still 2400baud.

      E (P.S. This has little to do with RS232. That's just the serial standard to communicate with the MODEM. The MODEM talked on the PSTN at the baud rates up to 2400baud).

    8. Re:Baud vs bps by aberkvam · · Score: 4, Informative

      The American Heritage Dictionary of the English Language, Fourth Edition says, "acronym n. A word formed from the initial letters of a name, such as WAC for Women's Army Corps, or by combining initial letters or parts of a series of words, such as radar for radio detecting and ranging."

      MOdulation/DEModulation certainly seems like it qualifies to me. It is using the initial parts of a series of words. I don't see how it is any different than RAdio Detecting And Ranging.

    9. Re:Baud vs bps by Anonymous Coward · · Score: 0

      The word MODEM (as the article indicates) represents MOdulatorDEModulator. Hence it should be capitalized. This is also try of enCOderDECoder (CODEC). Slightly less related yet as correct LASER and RADAR....

      Yes, thank you! This is what I'm always telling people, but they won't listen!

      Some other terms most people don't know to capitalize:

      SCROTUM: SCRatchable Outer Testicle-holder Under Manhood

      PENIS: Phallic ENlarging Insertable Schlong

    10. Re:Baud vs bps by KingMotley · · Score: 1

      MODEMs at 2400baud or less did not require flow control -- they worked at serial line speed, and did not buffer. Modems at 4800bps and higher did buffering and would do various flow-control techniques.

      That all depends on what you were trying to achieve. There certainly were modems that did flow control and buffering with speeds below 2400, however, it became more prevalent around that time because error correction, and data compression became wide spread. Most reputable manufacturers doing 2400 baud all supported flow control, error correction, and data compression in their 2400 baud models (Hayes, USR). There were error correcting 1200 baud modems, and there was specialty modems that did end-to-end flow control as well.

    11. Re:Baud vs bps by Anonymous Coward · · Score: 0

      The American Heritage Dictionary

      Dude, this is the 21st century, a dictionary is about as useful as a modem.

    12. Re:Baud vs bps by TeknoHog · · Score: 1

      Perhaps this is one reason why people today say "bandwidth" when they mean data rate (aka channel capacity). It's easy to confuse "baud" with bits per second if you're not technically oriented. Baud rate corresponds to bandwidth, you need 2400 Hz of bandwidth for 2400 transitions per second. Higher bandwidth means a potentially higher data rate, so again this is probably easy to confuse. Then we also have "broadband", which again has nothing directly to do with data rates.

      --
      Escher was the first MC and Giger invented the HR department.
    13. Re:Baud vs bps by ceoyoyo · · Score: 1

      Today we tend to saturate the capacity of our channels so "bandwidth" and "data rate" are usually reasonably proportional, if not actually equal.

    14. Re:Baud vs bps by Anonymous Coward · · Score: 0

      Um,... except the quoted definition lists "radar" not "RADAR."

    15. Re:Baud vs bps by TeknoHog · · Score: 1

      Today we tend to saturate the capacity of our channels so "bandwidth" and "data rate" are usually reasonably proportional, if not actually equal.

      I'm afraid you have really missed the point, not just my earlier post but the overall discussion. An example modem can use a bandwidth of 2400 Hz, which also means 2400 baud, while delivering 9600 bits per second. The reason is that a single transition in the signal can contain multiple bits of information, in this case 4.

      For more mathematical details, see http://en.wikipedia.org/wiki/Shannon-Hartley_theorem

      --
      Escher was the first MC and Giger invented the HR department.
    16. Re:Baud vs bps by ceoyoyo · · Score: 1

      I think you've missed the point of my post.

      I did not claim that "bandwidth" and "data rate" are equal but that they are generally proportional today, since we normally push our communication channels very near their maximum data rates. That means that, for similar channels, if you have twice the bandwidth, which allows twice the signalling rate, you will get about twice the data rate as well. If my DSL connection is twice as fast as yours (by data rate), there is a very good chance that I'm using twice the bandwidth that you are.

      This was not generally the case in the past since, as you point out, modems operating on 2400 Hz channels might provide 2400 b/s, 4800 b/s, 9600 b/s, 14400 b/s, etc., depending on how clever your modem was at exploiting the available bandwidth.

    17. Re:Baud vs bps by TeknoHog · · Score: 1

      OK, but I'm still confused. Mathematically,

      data rate = bandwidth * log(1 + S/N)

      so the constant of proportionality is determined solely by the signal/noise ratio. What you're saying is that the signal/noise ratio is tending towards a constant. This may be true for a certain type of communications channel, under the same line conditions, but I don't see how this can be true more generally. For one thing, it doesn't matter how clever the modem is, if the line is particularly noisy.

      --
      Escher was the first MC and Giger invented the HR department.
    18. Re:Baud vs bps by ceoyoyo · · Score: 1

      No, I said "for similar channels." Similar channels will have similar signal to noise ratios. It's true that data rate and signalling rate won't necessarily have the same proportionality constant between two very different mediums (like wireless and wired, for example), but we tend not to compare those directly anyway.

      If we're going to compare our DSL or cable connections (for example, you're a bandwidth hog because you use ten times as much as I do), it's not a bad approximation to assume they have roughly equivalent S/N ratios. Even if you wanted to compare cable to DSL it wouldn't be such a terrible approximation.

      I'm not saying that we're being correct when we say bandwidth when we mean data rate, just that it's a better approximation today than it used to be. You're absolutely correct that the noise characteristics of the channel still change the proportionality between the two, but for the consumer systems that the public usually talks about the S/N ratio tends to be a much smaller contributor to the variance than the modulation scheme used to be for modems.

      As an aside, note that for the "bandwidth hog" type comparisons, we actually mean bandwidth, even though people usually use units of bits or bits/s. The important factor isn't how much data you transfer but rather how much of the available bandwidth you're occupying.

  13. A few things missing there by WindBourne · · Score: 2, Interesting

    In the 70's, a number of ppl still had party lines. Basically, could not use it. Those that did not have party lines had very dirty lines. My modem ran normally at ~75 baud, though it was rated at 150. The reason was simply due to the lines. If you ran at 150, the chars would get bad. And while there was a parity bit, it really did not do the job. So, you ran slower and slower speeds. Also, it was possible (in fact, probable) to have your connnection cut. This was all in Northern Ill (the largest close town was a whopping 15K ppl; McHenry, Ill). Once I moved to Ft. Collins (ft. fun), Colorado, the lines improved in the town. We ran 150 and some places could run 300 baud. Outside, of the town, it was still party lines.

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:A few things missing there by tirerim · · Score: 1

      The 70s? Try the 90s. My best friend in middle and high school was on a party line, but that didn't stop us from calling each other up and chatting through terminal windows. Yes, we could just as easily have used voice... but it was more exciting this way. No idea what the effective speed was, but it didn't matter much for just text.

  14. Oh, for the "good old days" by ihuntrocks · · Score: 3, Insightful

    A few friends and I were talking about our days on dialup when we were growing up. One friend was commenting on not noticing the download time on a 5 meg file, and how he complains when his download speeds are 500 k per second now. We had a little fun recalling our top-out speeds of 4.6 k per second, and the magical "1 meg every six minutes" rate we had all calculated growing up.

    We all agreed that in a way, it is almost a shame that kids today are growing up with remarkably better technology than we had at their age (and it hasn't been that long ago that we were their age). We all sort of miss dealing with cobbled together and salvaged parts, trying to eek out any performance we could from our machines. One of the friends present recalled helping me overclock my 33 mhz machine to 36 mhz (woohooo! A 10% gain) and how excited we were.

    These days, my cell phone has more computing power than the first three computers that I owned, and a much faster data transfer rate. The old technology still amuses me though.

    --
    Randimal: AT-CG-CG-AT-CG-AT-AT-CG-CG-AT-AT-CG-AT-CG-CG-AT-CG-AT-AT-CG-AT-CG-CG-AT-AT-CG-CG-AT-CG-AT-AT-CG
    1. Re:Oh, for the "good old days" by bertok · · Score: 2, Interesting

      We all agreed that in a way, it is almost a shame that kids today are growing up with remarkably better technology than we had at their age (and it hasn't been that long ago that we were their age). We all sort of miss dealing with cobbled together and salvaged parts, trying to eek out any performance we could from our machines. One of the friends present recalled helping me overclock my 33 mhz machine to 36 mhz (woohooo! A 10% gain) and how excited we were.

      Here's a fun factoid* for you: most electronic parts have an error tolerance of at least 1%, with 10% not unusual. Even things like the clock source of a PC would probably drift by about 0.1% due to things like humidity, temperature, or whatever. Or to put it another way, a modern 3GHz CPU running at a "fixed speed" loses or gains about 3MHz from the influence of the weather. Given that most modern CPUs do a lot more "work" per clock than old XT era processors, that means that just random variations in the performance of my current CPU account for more processor power gained or lost than my first 2 computers combined.

      The next processor I'm buying will have more on-chip cache than the total system memory of my first 3 computers combined, and will be bigger than the capacity of my first hard drive!

      But on the topic of modems, around the start of the 56K era, I signed up for some random 'beta tester' program with Netgear through work (summer internship during high school), and I got sent a $1000 "enterprise" modem to beta test. It looked and worked like an ordinary 56K modem, but had very good quality components, and very good noise resistance and reliability. It was one of the best electronic devices I had ever owned. It had amazingly low latency, and was the best for playing games online. It outperformed the latency of the first-generation cable internet here in Australia for years.

      *) May not be actually factual, this all depends on the technology used to generate the clock, some are more accurate than others.

  15. US Robotics by DebianDog · · Score: 2, Interesting

    I just remember US Robotic modems and BBS's and when you were lucky enough to have a USR and connect to another US Robotics modem you always seemed to get a speed just above what everyone else had. (HST mode) 16.8k back in 92-93 us laughing at the poor 14.4 guys. In retrospect... kind of sad.

    1. Re:US Robotics by DarthBart · · Score: 2, Informative

      I did my second incarnation of BBSing using a Datarace modem. It would only do 4800 when connected to other modems, but it would do 9600 if connected to another Datarace modem, but it did that by using up all of the voice bandwidth at once by going half-duplex over the line. I only found one other board that had a Datarace modem, but it shocked me the first time I saw "CONNECT 9600" when I was used to "CONNECT 4800".

  16. For years, Hayes ended press releases with +++ATH0 by originalhack · · Score: 4, Interesting


    Its a shame that the article missed so much....

    Like the times when much of the industry didn't want to license the Hetherington Patent from Hayes on the "guard time" surrounding the "+++" in the escape sequence, so Hayes ended all of their press releases with +++ATH0 (which would cause a lot of modems to hang up on the BBS systems of their day).

    They also missed the interesting fact that the "56K" modem was an old idea that was rattling around Bellcore for years before 1996 and fairly common knowledge in the Bell system. [The big issue with getting there was the need to have digital trunks connecting all of the dial-in server pools with the telephone network.]

    Probable never would have become a mainstream consumer device without AOL. Until AOL, you really had to be a geek to use one.

    And, of course, the modem wars of 1996-1998, as the major technology companies duked it out, the vast majority of modem companies went bust, including Hayes.

  17. Horrible... by Hylandr · · Score: 0, Troll

    The article sis complete rubbish.

    --
    ~ People that think they are better than anyone else for any reason are the cause of all the strife in the world.
  18. Reminds me of my first Linux Job by ihuntrocks · · Score: 1

    Thinking about modems reminds me of my first Linux admin job. I started out as a junior admin for a dial-up ISP in my hometown (that should be read as "flunky" since there were only two of us: my supervisor and I). Managing a server and a modem bank, all fed by T1. Those were the days. While knowledge of dial-up technologies stopped serving me long ago, at least I got to cut my teeth on networking and Linux, and I have been able to capitalize on those ever since. Going to work there got me a free dial-up account, which put an end to my long reign of stealing dial-up from those I knew. Ah, those were the days. Now I have to pay someone for the ability to steal things from the internet.

    --
    Randimal: AT-CG-CG-AT-CG-AT-AT-CG-CG-AT-AT-CG-AT-CG-CG-AT-CG-AT-AT-CG-AT-CG-CG-AT-AT-CG-CG-AT-CG-AT-AT-CG
    1. Re:Reminds me of my first Linux Job by Anonymous Coward · · Score: 0

      See subject line above. ihuntrocks = merely another USER (only with a better password).

  19. Could you tell speed and error correction by ear? by ashitaka · · Score: 3, Interesting

    After thousands of times listening to my various modems connecting from 300bps to 56K and with the various incarnations of error correction I was eventually able to knowing how fast I was connected by sound alone. The problem was that as modems got faster and more sophisticated the connection time kept getting longer and longer. Sometimes I'd have to wait through 45 seconds or more of whistles, grinds and groans before the two modem would train. Ah, the good old days.

    In the vain hope that they'll have nostalgia value someday I still have in my possession:

    1) Mint condition Hayes Smartmodem 2400. The original workhorse.
    2) Practical Peripherals 14.4K. long box with a one-line LCD that displays the connection speed and error correction mode
    3) US Robotics 56K Courier - The last great standard.

    --
    If you don't want to repeat the past, stop living in it.
  20. Modems are hard to come by now by gyrogeerloose · · Score: 2, Interesting

    I was trying to put together an inexpensive homebrew computer-to-transceiver audio interface for digital radio transmissions and needed a pair of audio frequency transformers. I knew that all POTS line modems had a transformer in them that would work and I thought that this would be a cheap source for parts that cost about ten bucks apiece new. Of course, I had just recently sent all my old modems to the recycler so I started asking around to see if anyone had a modem that they wanted to get rid of. Out of the more than 20 people I asked, not a single person still had one.

    Hard to believe that only ten years ago the modem ruled supreme when it came to Internet access. Now you can't even find one to cannibalize.

    KJ6BSO

    --
    This ain't rocket surgery.
    1. Re:Modems are hard to come by now by MichaelSmith · · Score: 1

      Here in Melbourne, Australia computer swap meets (markets for grey marketing, mostly) usually have bins of old modems, mostly with their power supplies for two dollars each. If you buy two or three you can get a working unit. Are there similar markets where you live?

    2. Re:Modems are hard to come by now by gyrogeerloose · · Score: 1

      Are there similar markets where you live?

      They used to be pretty common but not so much anymore. And I just wanted cannibalize them for a specific part--I wouldn't have even cared if the things worked as long as the 1:1 audio transformers weren't burnt out.

      --
      This ain't rocket surgery.
    3. Re:Modems are hard to come by now by MichaelSmith · · Score: 1

      I have a couple of modems I could junk and I am sure a lot of people around here do to. Maybe put up a journal page and point your sig to it. You will have to pay postage. I could send you a few but its going to be from Australia, which could be expensive.

    4. Re:Modems are hard to come by now by gyrogeerloose · · Score: 1

      I could send you a few but its going to be from Australia, which could be expensive.

      Yeah, it would undoubtedly be cheaper to drop the USD 20 on the new parts from Mouser, but thanks anyhow. I only brought it up to point out the current scarcity of modems.

      --
      This ain't rocket surgery.
    5. Re:Modems are hard to come by now by FlyingGuy · · Score: 1

      Dude, you must not know how to use google...

      You want a modem, you have but to only take out your credit card and go to US Robotics and purchase one to suit your needs from the about $250.00 to 19.95.

      --
      Hey KID! Yeah you, get the fuck off my lawn!
    6. Re:Modems are hard to come by now by gyrogeerloose · · Score: 1

      I know I can buy a new one. You've obviously missed the point of my post which was that outdated modems, which were once ubiquitous and often available for free, are now scarce.

      --
      This ain't rocket surgery.
    7. Re:Modems are hard to come by now by antdude · · Score: 1

      I still have my old USR Sportster 33.6k dial-up modem for emergencies when cable modem goes down or something. :)

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    8. Re:Modems are hard to come by now by FlyingGuy · · Score: 1

      Whoops, my bad.

      Hmmm interesting, I dunno I have a few laying around in the garage. You can probably pull the same thing out of most any cheep transistor radio and get "close nuff fo guvment werk" or just google POTS telephone schematic and see what they are exactly and then find them cheap at radio shack or on the net.

      This might be a helpful link.

      --
      Hey KID! Yeah you, get the fuck off my lawn!
  21. No mention of the Hayes VS. Telebit 14.4K wars?? by bADlOGIN · · Score: 2, Insightful

    Back in the early '90 the whole HST vs V32.bis was a big deal for a couple of years. It's a bit sad to not see this mentioned in terms of the impact to the PC modem world...

    --
    *** Sigs are a stupid waste of bandwidth.
  22. Parkinson's Law by michaelmalak · · Score: 3, Insightful

    To grab a bit of perspective on the actual speed of these modems, consider that a letter consists of eight bits. A speed of 300 bits meant that this modem could only send out around 30 letters a second.

    While one might think things have improved by four orders of magnitude (10,000x), thanks to Parkinson's Law, they have only improved by two orders (100x). Navigating to the washingtonpost.com home page takes 7 seconds to load on my 2.5-year old 2GHz desktop with Firefox. CTRL-A and CTRL-C then paste into Notepad yields a 15K text file. 15 * 1024 * 10 bits / 7 seconds = 19.2K.

    Hey, it's like I'm back running my 1992 BBS.

    1. Re:Parkinson's Law by Anonymous Coward · · Score: 0

      Ok, nevermind the markup (the source from when I just checked is 172KB) or the images and talk about just the pure number of letters included. Great, that's a perfectly fair comparison.

    2. Re:Parkinson's Law by Rob+Simpson · · Score: 1

      Ok, nevermind the markup (the source from when I just checked is 172KB) or the images and talk about just the pure number of letters included. Great, that's a perfectly fair comparison.

      It is a fair comparison. That unnecessary bloat is the very "Parkinson's Law" he refers to.

    3. Re:Parkinson's Law by Anonymous Coward · · Score: 0

      Yabbut you forgot the 18.6M of JavaCrap whose sole purpose is to prevent folks from seeing more than one paragraph at a time, oh, and to set more cookies than a economy-sized bag of Oreos, tracking every step you make thereafter.

  23. Some of the Baby Bells by Anonymous Coward · · Score: 0

    were tryting to stop people from connecting early modems or setting up BBS, despite the law.
    Probably one of the major reasons for the slow early improvement in modems.

    1. Re:Some of the Baby Bells by MichaelSmith · · Score: 2, Interesting

      Yeah here Telecom Australia charged $10000 AU dollars per year for a DDS connection (thats 9600 bits per second, serial on a 25 pin D connector, point to point). Its a good service, but 10 grand?. The early limitations on modems not provided by Telstra were basically there to protect that business.

  24. No mention of Telebit? by Rorschach1 · · Score: 2, Interesting

    What history of modems completely skips the Telebit Trailblazer? Roughly 18 kbps in 1985 - many years before 14.4k modems became common. Expensive enough to be out of reach of most BBS'ers, though. But worth the money if you were doing UUCP over a long distance call every night.

    1. Re:No mention of Telebit? by b1t+r0t · · Score: 1

      One might argue that Telebit's spoofing of the UUCP-g protocol (about as inefficient as XMODEM when not spoofed) let the uucp folks get lazy and not bother to implement a real streaming protocol (such as ZMODEM), thus marginalizing uucp to those who could afford that one particular expensive brand of modems. Fidonet, on the other hand, went as far as what was called the "Janus" protocol, which was the equivalent of having independent ZMODEM sessions in each direction.

      --

      --
      "Open source is good." - Steve Jobs
      "Open source is evil." - Microsoft
    2. Re:No mention of Telebit? by Anonymous Coward · · Score: 0

      One might argue that Telebit's spoofing of the UUCP-g protocol (about as inefficient as XMODEM when not spoofed) let the uucp folks get lazy and not bother to implement a real streaming protocol (such as ZMODEM), thus marginalizing uucp to those who could afford that one particular expensive brand of modems

      One might, but then one would be wrong. Allow me to introduce you to several other protocols supported by Taylor and several other UUCP suites:

      http://www.airs.com/ian/uucp-doc/uucp_7.html

      Several sites experimented with "G"; UUNET somewhat supported it.

      "x" became quite common in the land of EUNET and a variety of other places.

      "t" was used extensively in the early years of the commercial Internet where AUPs were not an issue.

      However, "g" spoofing worked very well for the transfer of news batches (and ftpmail transfers), and could beat magtape-via-postal-services to distant places.
      Indeed, in the early days of international dial-up SLIP, BSMTP over "g" over Telebit's PEP usually performed best for anything but frequent small emails (frequent enough to build up a uucico queue, but infrequent enough not to be stuffed into a batch).

      The key point here is PEP, which itself was not geared towards bidirecitonal traffic such that its handling of overlying streaming protocols was often particularly poor exactly when PEP had the best throughput gains over e.g. V.22bis/V.32/V.32bis (even with V.42).

      Eventually the international connectivity programs sponsored by the NSF and a variety of other agencies in the USA (working with counterparts abroad) allowed the migration to "t" over TCP/IP over a variety of synchronous lines (HDLC/PPP) or TCP/IP over X.25. UUCP-over-the-Internet ultimately was replaced by NNTP/SMTP directly over TCP/IP as the news and mail transfer agents began to support pipelining, which became competitive with compressed UUCP batches.

      For comparison with Fight-o-net's history, "g" was effectively dead for any substantial site -- pace UUNET, whose customers were paying for it -- by 1991-2, relegated to niche long-haul (and satellite) applications using Telebit PEP + "g" spoofing; "G" did not last much longer, although "t" and "x" were still seing some serious use in 1993-1994.

    3. Re:No mention of Telebit? by cramoft · · Score: 1

      What history of modems also skips is Vadic and Racal Vadic. The first full duplex 1200 bps modem (VA-3400) was designed John A.C. Bingham. It was patented and was copied by Bell/ATT to make the Bell 212AT. The VA-3400 use offset carriers which gave 2.5 dB better FDX performance than the 212AT modem. Because the VA-3400 had offset carriers it made a great acoustic couple. The 212AT was very poor at acoustic coupling. Vadic also had one of the best performing V32 MODEMs on the market.

  25. Missed the whole USR Courier saga by djrobxx · · Score: 3, Interesting

    I don't recall V.42 / MNP being popular with 2400 baud modems. The data rate was so slow that enabling error correction resulted in too much latency when "browsing" text. MNP could be done in software also, and a few comm programs offered it. They missed the whole Courier HST vs. v.32bis battle. The v.32 and v.32bis modems were way more expensive than USR's modems for a long time because implementing that standard required an echo canceling chip. This allowed full speed bidirectional transfers where USR's didn't. Most didn't care because they weren't usually doing both upload and download at the same time. That is, unless they were using Bimodem, which allowed two-way transfers. And you could chat with the SysOp during the transfer! Good times, good times...

    1. Re:Missed the whole USR Courier saga by cswiii · · Score: 1

      I had one "24/96" faxmodem that could connect v.42/mnp... but only when I used the Cheyenne Faxmodem software, or whatever it was, to dialin to the BBSes I called. It was the damnedest thing, I mucked with every init string, did every bit of research I could on the thing (in the pre-Google days), but could never get compression to work with any of my comm programs. So when I was just browsing forums or door games, I'd use my comm program of choice... but when I wanted to transfer files, I'd dialin with the faxmodem software for that extra 15-20 bps.

      Huh. Surprised no one brought up term programs. I seem to remember using... something... I forget what, before a friend introduced me to QModem. And QModem lasted me a long time, until Telix. A lot of people liked Telix, or perhaps still do. I always liked Commo, which was scriptable/macro-able to the nth degree... or Terminate!, which had all the bells and whistles.... and a lot of weird history behind it, iirc.
       

  26. Article pages make a 300 baud modem cry by Anonymous Coward · · Score: 0

    The article would take what, an hour to receive on a 300 baud modem?

  27. My Modem Story by Tablizer · · Score: 4, Interesting

    I once worked at a place that had a DEC/VAX mini with a bank of about 8 modems for VT100-compatible terminals. If there were modem complaints such as dial-in problems, I had to first figure out which modem was connected to which phone number. Others didn't always keep the map up-to-date. Plus, it used busy-roll-over.

    The test phone was a ways away from the modem bank for the VAX minicomputer, so I had to keep the modem trying to connect long enough until I got there to see which modem answered the call (via LED). The only easy way I found to do this was to manually whistle an acceptable modem tone into the phone in order to trick the modem into thinking I was a modem trying to connect. This would keep it trying long enough to allow me to run from the test phone to the modem bank. It had to be the right pitch and wavering to work most of the time. I got pretty good at it after a while. I learned to "speak modem" a bit.

    A computer-room technician once saw me whistling modem sounds into the phone and running back and forth. I later told him why, and he told me I was nuts and mumbled something about whistling sweat nothings to my robotic girlfriends.

    1. Re:My Modem Story by Narnie · · Score: 3, Funny

      A computer-room technician once saw me whistling modem sounds into the phone and running back and forth. I later told him why, and he told me I was nuts and mumbled something about whistling sweat nothings to my robotic girlfriends.

      That sounds like a great start to a new sig.

      --
      greed@All_Evils:~#
    2. Re:My Modem Story by Anonymous Coward · · Score: 0

      Get a southern modem. You'll be whistling Dixie.

  28. SMS by Anonymous Coward · · Score: 0

    FTA: "To grab a bit of perspective on the actual speed of these modems, consider that a letter consists of eight bits. A speed of 300 bits meant that this modem could only send out around 30 letters a second." That's about the same speed as text messaging.

  29. Re:For years, Hayes ended press releases with +++A by Tablizer · · Score: 5, Interesting

    Like the times when much of the industry didn't want to license the Hetherington Patent from Hayes on the "guard time" surrounding the "+++" in the escape sequence, so Hayes ended all of their press releases with +++ATH0 (which would cause a lot of modems to hang up on the BBS systems of their day).

    This is how I remember it. Hayes modems, using the patent, required a certain amount of delay time surrounding "+++", their escape sequence, before the modem would recognize it. Thus, "+++" in the text stream wouldn't trigger it under normal circumstances because it would come and go too fast.

    But the patent was a patent on the delay; and to avoid paying for the "delay" royalties, other modem companies would just use "+++" without the delay for their escape sequence, which risks modem confusion if accidentally sent as text, but otherwise wasn't that common. However, to embarrass non-patent modem companies, Hayes embedded "+++ATH0" in their digital documents. This would cause non-Hayes modems hang up if they ever transferred such documents. The trick sounds rather Microsoftian.

    I remember other vendors complaining to the press, saying "you cannot patent pauses. Next they'll patent Ummm's" or something like that. (Obama would have a big bill if they did.)
         

  30. I love modems by OrangeTide · · Score: 1

    No I really do, I love modems. I grew up with them. And calling BBSes (and running one for several years) was really great.
    I don't think I would have gotten into programming (my career) if it wasn't for the BBS scene of the 1990s.

    --
    “Common sense is not so common.” — Voltaire
  31. Re:For years, Hayes ended press releases with +++A by soundguy · · Score: 1

    It also neglected to mention that 56k was strictly theoretical and in the real world, it was normally capped at 53k max to avoid crosstalk.

    Did anyone else have one of the "shotgun" modems in the late 90's - a pair of 56k chips on a single card? You could plug it into two separate POTS lines and connect to an ISP that supported aggregation to get a genuine 106 kbsp down and 67 up. I was on Netcom at the time, which supported aggregation. You could actually have call-waiting on one line and when someone called, the card would drop back to one channel and the phone would ring. It was actually pretty slick and I ran it for a year or so until DSL was finally available in my neighborhood at a blistering 256k.

    --
    Nothing worthwhile ever happens before noon
  32. Init strings by imidan · · Score: 1

    Man, remember writing init strings? That was a skill. Every new modem you got, you sat down and figured out how it interpeted the AT codes. Then, you had to fine-tune the string. How long did your line need dialtone before you dialed? How fast could you dial the numbers (in ms)? Of all my memories of dial-up, I think some of my best are of tweaking the init string so you could dial in as fast as possible. After all, there was a good chance you'd get a busy signal; you need to hang up and redial ASAP!

  33. Line Conditioners by hebertrich · · Score: 1

    CNCP Telecom ( at least them .. certainly others too ) used telephone line conditioners.
    Their role was to boost the high frequencies so's you would get more bandwidth specially
    in places where the telephone lines were a bit below spec or borderline or too long .Im surprised
    noone seems to have noted their absence .. guess you were all skipping class that day :)

    Ric

  34. HPY time by jones_supa · · Score: 1

    In late 90s the biggest telephone operator in southern Finland was called HPY. The company had such rates that would allow you to have the first 30 minutes of a call for a fixed price. After that a per-minute rate kicked in. So it was actually a common practice for finns to stay online a bit over 29 minutes at a time, then shout something like "hpy" on BBS/IRC and reconnect. Funny.

  35. Re:Could you tell speed and error correction by ea by JakartaDean · · Score: 1

    What would have nostalgia value for me would be if you had recordings of the handshake -- that would bring back memories (not all good).

    --
    The subject who is truly loyal to the Chief Magistrate will neither advise nor submit to arbitrary measures (Junius)
  36. Homemade by Anonymous Coward · · Score: 0

    In the early days hobbyists had to build their own modems. I say 'Hobbyist' because that is all there was in the days of s100 and CP/M or Northstar DOS when micro computers only came in kit form. The PennyWhistle was a favorite as is was a feature article in Popular Electronics. The AppleCat was another popular hobbyist modem that was made popular with the Apple II.

    I setup the original BBS system in the late 70's for Ward Christensen and Kieth Peterson called CBBS in a computer store in Royal Oak, Michigan using a Bell 103 modem.

    Now get off my lawn.

  37. Bah, kids nowdays -- 42bps modems by Ancient_Hacker · · Score: 3, Interesting

    Bah, kids nowdays, so spoiled with the megabit modems.

    Before the Bell System modems, there were over-the-airwaves modems, going back to 1930 or so. The endpoints were teletype machines, whirring away furiously at 60WPM, 7.42 bits per character. ( 5 data bits, one start bit, 1.42 stop bits).

    The modems wee made up of L/C filters and a trunkful of vacuum tubes. I used to have a military modem, a CVV -something, that was the size of a suitcase and weighed about 60 pounds. 42 BPS.
    But it could do 42BPS over a noisy fading shortwave radio link, all day long, while taking direct mortar rounds, and never say "NO CARRIER."

    1. Re:Bah, kids nowdays -- 42bps modems by Nezer · · Score: 1

      1.42 stop bits? No wonder it was so slow, the poor computers were confused.

  38. I am old by Anonymous Coward · · Score: 0

    My first modem experience was in 1979 with an Epson 110 baud acoustic modem using a rotary phone and connected to a line printer. The connection was from my high school library to the West Chester State College outside of Philadelphia. Played a lot of text games - Hunt The Wumpus, Star Trek, Adventure, etc. and learned BASIC - I printed out the code and learned how the games were made. That was 30 years ago.

  39. Yes, not "actually factual" by dtmos · · Score: 1

    You're right about most of the components in a PC, but not what determines the clock stability. The clock speed is set by a phase-locked loop using a crystal oscillator (usually quartz) as a frequency reference. Quartz crystals used in your garden-variety PC typically have a worst-case environmental stability specification of 10 to 100 ppm (0.001% to 0.01%), depending on a lot of factors, most of which are design (and cost) parameters, and most of the time the clock frequency is much closer than that: Running a "modern 3GHz CPU" over its entire specified operating temperature range (e.g., -10 to +60 C, although this will vary by manufacturer) one would expect less than 300 kHz frequency drift. (Note that this is the ambient air temperature, not the CPU temperature.)

    One usually has to get down to the range of single-chip MCUs to find clock applications that can support frequency stability as poor as 0.1%. In these applications, piezoelectric ceramic resonators are common, due to their lower cost compared to crystals.

    1. Re:Yes, not "actually factual" by Pentium100 · · Score: 1

      CPUZ says that the CPUs in my main PC are running at 1994.7MHz instead of 2000MHz. Since there are two CPUs with two cores each I "lost" 21.2MHz. Also modern CPUs perform more work per cycle than old CPUs, so probably the 21.2MHz speed "loss" would be equal to my first laptop that has 486DX 50MHz CPU.

  40. Hayes had great EE design, and also case design by badusername · · Score: 1

    I think the Hayes Smart-Modems of the early 1990s were some of the most attractive electronics of the era. They had that aluminum case, with ever-blinking LEDs behind the black window. Hayes were top of the line for a while. A short while, unfortunately for them. I Googled and found this interesting site http://www.heatherington.net/hayes/index.html Such big hair at the time.. for men and women.

  41. Re:Could you tell speed and error correction by ea by troll8901 · · Score: 1

    if you had recordings of the handshake -- that would bring back memories (not all good).

    Why, did you have crushes on girls in BBSes?

    I remember seeing the girl's username online and feeling tingles of love running up and down my spine.

    And the V.8 handshake always mean I have a chance of seeing them online, and chatting with them.

  42. Re: I ran one of those... by Phrogman · · Score: 1

    Although I think I must have had an improved model as I believe the one I used was 180 baud. Used to run it connected to a secure teletype machine and printer, all of which was connected to an HF radio. We could send messages up to about 3000m depending on conditions :P
    Actually the process was to punch up the message on a tape first, then feed the tape through the TT machine to send the message. You had to get the message header perfectly formatted or it would be refused at the other end (generating an error message which required a response with a perfectly formed header - or you got an error message response to your error message etc. Fun times were had by all). Believe it or not I miss that technology :)

    Although not as much as I miss running a BBS. It was always massive fun to hear the modem go off, do its handshake, and then go check the PC to see who was connecting and from where etc. The web is more userfriendly overall, but it just isn't as personal as the BBS community was. I don't miss my phone bills though...

    --
    "The first time I got drunk, I got married. The second time I bought a chimpanzee, after that I stayed sober" Arian Seid
  43. Terrible by Maury+Markowitz · · Score: 1

    Wow. Not only does it simply rip off the Wikipedia without crediting it, it's technically wrong throughout. Terrible article, not worthy of front page /.

    Maury

    1. Re:Terrible by hollywench · · Score: 1

      Someone should point them over here here. "Oh hai, we rewrote ur article for u. Kthxbai." There's damn sure more information here than in that article. :p

    2. Re:Terrible by Nezer · · Score: 1

      Wow. Not only does it simply rip off the Wikipedia without crediting it, it's technically wrong throughout.

      Maury

      Why be redundant? You already mentioned the source was Wikipedia.

  44. Re:For years, Hayes ended press releases with +++A by hollywench · · Score: 1

    AOL was once upon a time known as Quantum. If you didn't have a Commodore 64, you didn't get to play online. The average IQ at Qlink was a LOT higher then, lemme tell you.

  45. I forget the details at this point by gelfling · · Score: 1

    But my USR 56kbaud modems were never able to exceed 33kbaud on my home POTS lines. The phone co, Southern Bell explained to be it had something to do with how their 'remote' CO was built. A remote CO is essentially a bunch of switches nailed to a telephone pole where there is a large cluster of endpoints more than 15 (or 18?) thousand feet from the nearest CO. In either case the remote CO, functioning like a giant glorified midspan repeater could not handle the constellation pattern of 56kbaud. Cheaped out, in other words. I suspect this had something to do with them trying to get me to buy FAKE ADSL - which, actually wasn't ADSL but instead they took 2 8bit ISDN lines, bonded them together for a single sync 128kbps channel. Of course everytime you picked up the phone, you lost half of your data bandwidth.. I never did get a good answer why they couldn't use two 7+1 channels with single sideband signaling for voice...oh well.

    Well now we have cable and U-Verse and all sorts of stuff and my kids don't know what the modem handshake sound is.

  46. Re:No mention of the Hayes VS. Telebit 14.4K wars? by b1t+r0t · · Score: 1

    I had forgotten completely about Telebit. I never got to hear its modulation, though I've heard it described as sounding like "whalesong". I just did a check on Youtube to see if something about it may have been uploaded, and it thought I misspelled "Telebid". Sheesh.

    --

    --
    "Open source is good." - Steve Jobs
    "Open source is evil." - Microsoft
  47. Research! Research! Research! by Anonymous Coward · · Score: 0

    These hacks need to spend more time doing research before churning out articles, e.g. I could swear that I can remember from when I was a kid in the late 80s and had speed envy that US Robotics(Racal Vadic?) and others had already turned out 9600bps and higher speed modems(14.4kbps). The catch was that they ONLY worked with the same brands/types of modem as they used highly proprietary mechanisms. Then in the early-mid 90s came the 28kbps then 56k modems shortly thereafter.

    Those early 9.6k+ modem were expensive as I recall, something like $1000 apiece or close, of course I may be misremembering and they may have only been $500 or but either way I was a kid and it was alot of money for those beasts...

  48. Re:No mention of the Hayes VS. Telebit 14.4K wars? by b1t+r0t · · Score: 1

    One thing I forgot to mention was that apparently (from what I heard back in the day), Telebit was popular among uucp sites. HST was big with the BBS scene because of USR's special offer to sysops (you had to have a dedicated-line BBS, and being a Fidonet node was almost an instant qualifier). V.32/V.34 took over because nobody ever sold anything compatible with Telebit, and USR insisted on making HST an extra cost feature for Courier modems only, never putting it in their consumer Sportster line.

    --

    --
    "Open source is good." - Steve Jobs
    "Open source is evil." - Microsoft
  49. If it didn't come in by Anonymous Coward · · Score: 0

    If your modem didn't come in an oak box, and have a telephone cord hanging out of the top, it's too new and doesn't count as part of a history of real PC modems. 134.5 baud ought to be fast enough for anyone.

  50. Very slow by Anonymous Coward · · Score: 0

    The slowest modem I ever encountered run 50 baud over HF radio. It weighed maybe 15kg and was built using discrete analog components.

    My first login was done at 1200/55, and my first Internet connect at 14k4...

    My current ADSL manages 10M down, 1M8 up. Things have changed. A lot!

  51. Old modem ad by metamatic · · Score: 1

    My web site ATH0.com has an old modem ad on the front page, I scanned it from an 80s magazine.

    --
    GCHQ Quantum Insert installed. If only our tongues were made of glass, how much more careful we would be when we speak
  52. Generation gap... by esarjeant · · Score: 1

    Something that hasn't been mentioned is how little today's college graduates will know about modems. I think this goes hand-in-hand with using analog tape recorders to store program data, this was quite common in the early 1980's and together with my 300 baud modem it really helped to demystify storage and electronic communications for me.

    Go ahead and shop for a new PC with a modem in. Good luck. Everything has a network board in it now, with the exception of FAX machines the modem has quickly been relegated to attics and basements everywhere. Tape drives aren't doing much better these days, it seems direct to disk is getting to be the cheapest route.

    --

    Eric Sarjeant
    eric[@]sarjeant.com

  53. BBS Documentary! by antdude · · Score: 2, Informative

    I was online with many BBS' with during dial-up modems days before they died because of the Internet. /. has a few old stories about this awesome documentary from years ago:

    Google Video has all the parts online:
    1: Baud introduces the story of the beginning of the BBS, including interviews with Ward Christensen and Randy Suess, who used a snowstorm as an inspiration to change the world.
    2: Sysops and Users introduces the stories of the people who used BBSes, and lets them tell their own stories of living in this new world.
    3: Make it Pay covers the BBS industry that rose in the 1980's and grew to fantastic heights before disappearing almost overnight.
    4: Fidonet covers the largest volunteer-run computer network in history, and the people who made it a joy and a political nightmare.
    5: Artscene tells the rarely-heard history of the ANSI Art Scene that thrived in the BBS world, where art was currency and battles waged over nothing more than pure talent.
    6: HPAC (Hacking Phreaking Anarchy Cracking) hears from some of the users of "underground" BBSes and their unique view of the world of information and computers.
    7: Compression tells the story of the PKWARE/SEA legal battle of the late 1980s and how a fight that broke out over something as simple as data compression resulted in waylaid lives and lost opportunity.
    8: No Carrier wishes a fond farewell to the dial-up BBS and its integration into the Internet.

    There is a DVD version that can be ordered, or downloaded for free and legally (hurray for Creative Commons) with less contents.

    --
    Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    1. Re:BBS Documentary! by FrankHS · · Score: 1

      Thanks for the links to the BBS documentary. I used to be a sysop and it brought back a lot of memories.

    2. Re:BBS Documentary! by antdude · · Score: 1

      Cool. What was the name and which software(s)?

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    3. Re:BBS Documentary! by FrankHS · · Score: 1

      The BBS was The New Age Connection In Riverside Ca. The software changed over the years. It started as PC Board, then GAP then Major BBS.

      The topic was alternative religions, but mostly it was a place where people hung out.

    4. Re:BBS Documentary! by antdude · · Score: 1

      Ah, cool. I lived an hour away from there, but too far to call (long distance). ;)

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
  54. Re:Could you tell speed and error correction by ea by swrider · · Score: 1

    Do you want a Hayes Smartmodem 1200 in the box?

  55. Book reading speed influnced by modems. by Lvdata · · Score: 1

    While growing up I started reading more and more for enjoyment. As modem technology improved, my reading speed HAD to increase to keep up with the modem, due to my inability to afford a com program with a scroll back buffer, due in part to the various terminal emulations that I wanted. I got to the point where I could read, remember and ace tests with my reading speed up to 14.4. My first slow modem was a 1200, then 2400, 4800, and I skipped 9600 to go to 14.4. After that I could not keep up at a reading speed. I can skim faster then 14.4, but not read and remember. Anyone else's reading speeds influenced by their modem?

  56. Might it be independence? by jonaskoelker · · Score: 1

    I can't help but feel that we've lost something valuable.

    Perhaps I'm just stating the obvious, but that thing would be (a feeling of, real or not) independence---that you could get by with your own mind, body and toolbox, without having to call upon experts whom you might feel have some power over you (the power to set a price if nothing else).

    Does that resonate with you?

  57. Re:your Obama/um snark by Anonymous Coward · · Score: 0

    In high school debate, we'd train each other out of saying 'um' by shouting 'UM!' at anyone that said it during an in-class / practice debate. It tended to cascade funnily, since you say um to fill silence while collecting your thoughts, and the first thing that happens when you're flustered in front of 20 classmates is that you say 'um' about 10 times in the next minute. It tended to be a bloodbath...

    Imagine that happening during a press conference. Even as an ardent progressive and an Obama supporter, that mental picture makes me smile.

    Having said that, it's a tame habit as bad speechifyin' habits go. Some people don't even notice 'em. And I'd rather the president say 'um' than say 'nucular'. Or some of those Bostonian 'R' dialect words (pahk the cah in the garaRj).

  58. Why'd you run you mere user w/ a better password? by Anonymous Coward · · Score: 0

    See subject-line above, & see how "the user with a better password" ran from this ->

    http://tech.slashdot.org/comments.pl?sid=1490078&cid=30562472

    Typical - he did just like most "users with a better password" usually go and do: Run!

    ----

    "Outside of being completely amused by your rantings at others for criticizing your awful posting style" - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    Care to show us your PHD in English, you undereducated moron? It's terribly amusing WATCHING YOU RUN LIKE A SCARED BEYOTCH WHO SHOT HIS MOUTH OFF & NOW IS AFRAID TO BACK UP HIS B.S. ... or, are you showing others differently now? Not.

    ----

    "I am highly amused that you have honestly made the absolute worst mistake an IT security professional can make: believing that you have found a solution that someone can't break." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    First of all: The use of a HOSTS file is only a SMALL PART of what's needed, but it is a HIGHLY EFFECTIVE ONE (especially in this very case) &, one that's easily obtained (see the HOSTS file section on wikipedia for example, & the mvps.org model's probably the best one listed imo @ least, because it's regularly maintained) & easily maintained as well (text editor, anyone?)...

    So, once more? Care to prove me wrong??

    So, grow a pair, & back up your b.s. I quote above:

    Show where I am SUPPOSEDLY "wrong" here, and I will rip you up in seconds with very simple, easy, & effective work-arounds for your b.s. here (and I think you KNOW it, & this is why you outright RAN, you moronic little coward).

    ----

    "I'm glad you think you are clever, and I encourage you to keep a healthy level of confidence." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    LOL: Who the hell are you? You're NOTHING MORE THAN JUST ANOTHER "USER WITH A BETTER PASSWORD" & that's it, "Mr. Admin", lol... so, please:

    Don't even TRY to be "clever" with me, OR "look down your nose @ me" you condescending little douchebag... because I will shred you, and again:

    I think you KNOW it, because you ran like a scared little child who has done wrong (I can only presume that by your running away from answering me here).

    ----

    "However, your solution isn't exactly flawless" - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    Well, once more? Tell me where it is "flawed" & I will tear up your stupid replies, literally in seconds, with very easy work-arounds (ones that are probably way, Way, WAY over your undereducated "user with a better password" dim brain's capability to come up with yourself).

    I'll be waiting...

    ----

    "and rather than showing healthy confidence, you're over posting, becoming belligerent toward others, and generally being a prick." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    You're the one calling the names FIRST, you LIMITED LITTLE DOLT (lol, "user with a better password"), & now?

    NOW, I am only returning the favor, in kind, & patiently waiting to see if you actually possess a set of testicles.

    After all - you running like a scared little "beyotch" now after I asked you to show me where my solution (only a partial one, it needs a LOT MORE to be safer than a HOSTS alone, but a HOSTS file is a hell of a good measure, easily maintained, & easily obtained AND THAT WORKS (on a very simple principal no less of "you can't get burned if you can't go into a fire" basically))?

    Well, after all your "big talk", which I quote now?

    Please... you're only proving my point for me. Keep running "big talking user with a better password o

  59. Why'd you run, user with a better password? by Anonymous Coward · · Score: 0

    See subject-line above, & see how "the user with a better password" ran from this ->

    http://tech.slashdot.org/comments.pl?sid=1490078&cid=30562472

    Typical - he did just like most "users with a better password" usually go and do: Run! Especially when they shoot their pie hole's off & can't back up their b.s. ...

    ----

    "Outside of being completely amused by your rantings at others for criticizing your awful posting style" - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    Care to show us your PHD in English, you undereducated little dolt?

    What's terribly amusing here, is WATCHING YOU RUN LIKE A SCARED BEYOTCH WHO SHOT HIS MOUTH OFF & NOW IS AFRAID TO BACK UP HIS B.S. ... or, are you showing others differently now? Not.

    ----

    "I am highly amused that you have honestly made the absolute worst mistake an IT security professional can make: believing that you have found a solution that someone can't break." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    First of all: The use of a HOSTS file is only a SMALL PART of what's needed, but it is a HIGHLY EFFECTIVE ONE (especially in this very case) &, one that's easily obtained (see the HOSTS file section on wikipedia for example, & the mvps.org model's probably the best one listed imo @ least, because it's regularly maintained) & easily maintained as well (text editor, anyone?)...

    So, once more? Care to prove me wrong?? Why don't you "grow a pair", & back up your b.s. I quote above:

    Show where I am SUPPOSEDLY "wrong" here, or, in the URL above, and I will rip you up in seconds with very simple, easy, & effective work-arounds for your b.s. here (and I think you KNOW it, & this is why you outright RAN, you moronic little coward).

    ----

    "I'm glad you think you are clever, and I encourage you to keep a healthy level of confidence." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    LOL: AND, who the hell are you?

    Clearly, based on your lack of reply? Well - You're NOTHING MORE THAN JUST ANOTHER "USER WITH A BETTER PASSWORD" & that's it, "Mr. Admin", lol... so, please:

    Don't even TRY to be "clever" with me, OR "look down your nose @ me" you condescending little douchebag... because I will shred you, and again - I think you KNOW it, because you ran like a scared little child who has done wrong (I can only presume that by your running away from answering me here).

    ----

    "However, your solution isn't exactly flawless" - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    Well, once more?

    Tell me where it is "flawed" & I will tear up your stupid replies, literally in seconds, with very easy work-arounds (ones that are probably way, Way, WAY over your undereducated "user with a better password" dim brain's capability to come up with yourself).

    I'll be waiting...

    ----

    "and rather than showing healthy confidence, you're over posting, becoming belligerent toward others, and generally being a prick." - by ihuntrocks (870257) on Saturday December 26, @10:44PM (#30560500)

    You're the one calling the names FIRST, in the URL above no less as proof thereof, you LIMITED LITTLE DOLT (lol, "user with a better password"), & now?

    NOW, I am only returning the favor, in kind, & patiently waiting to see if you actually possess a set of testicles.

    After all - you running like a scared little "beyotch" now after I asked you to show me where my solution is supposedly "flawed", & especially in the case of the NetBIOS problem...

    (Using HOSTS as a "total security solution", dummy - I never ONCE said it was that. It's only a partial one