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IBM Debuts Optical Transceiver Chipset

IBM debuted a new optical transceiver chipset today that researchers within the company promise will allow users to download data eight times faster than current technology. IBM cited the rising demand for digital media such as movies as the driving force behind the new technology. "IBM says it can meet that need, building its new chipset by making an optical transceiver with standard CMOS (complementary metal oxide semiconductor) technology, and combining that with optical components crafted from exotic materials such as indium phosphide and gallium arsenide. The resulting package is just 3.25mm by 5.25mm in size, small enough to be integrated onto a printed circuit board."

76 comments

  1. Investment and profit by HomelessInLaJolla · · Score: 0, Offtopic

    IBM did the work with funding from the US Department of Defense's Defense Advanced Research Projects Agency (DARPA). Does that mean that the taxpayers will receive a discount on the final product when it hits store shelves?

    Q: Who funded the startup of the companies in the .com boom?
    A: Federal technology grants (taxpayers), government backed low interest loans to encourage growth in that industry (taxpayers), and 401(k) contributors (working class taxpayers).

    Q: Where did all the profit go?
    A: Upper echelons.

    Q: Does that sound like a pyramid scheme?
    A: Yes.

    Q: Why is this comment modded troll?
    --
    the NPG electrode was replaced with carbon blac
    1. Re:Investment and profit by Bearhouse · · Score: 2, Insightful

      Probably for the same reason that your current one got modded down too... DARPA does not finance things for the fun of it - they get first refusal on any technologies developed. With the well-documented move of big corporations, and even universites, away from 'primary' research, it's good that the state (in whatever form) stil finances this sort of stuff. Most of the recent wealth in the USA was built on intellectual capital - we can't make most stuff cheaper than the Chinese. Everybody in the economy benefits from this greater wealth, albeit some more than others.

    2. Re:Investment and profit by HomelessInLaJolla · · Score: 0, Troll

      DARPA does not finance things for the fun of it That's been my point: since DARPA is financed by taxpayer dollars, what are the taxpayers getting out of it?

      But, no, I understand. It's easy to lose track of the people putting in the long hard hours at work to pay the taxes just so someone else can make three times as much working on the tax funded project. The path the money takes is just a little too complex for the majority of the Slashdot readership (and mods).

      Maybe I was giving everyone more credit than they actually deserved. Perhaps I'll have to spell it out in preschool letter tiles for most people to understand.
      --
      the NPG electrode was replaced with carbon blac
    3. Re:Investment and profit by heinousjay · · Score: 1

      The taxpayers are getting a general advance of technology, with attendant benefits that ripple to places no one expects. I suppose this concept goes straight past your head. I'll just point you to the Internet, which seems to be your favorite tool for disseminating half-baked rants, and let you in on the secret that its development followed the same path.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    4. Re:Investment and profit by HomelessInLaJolla · · Score: 1

      The taxpayers are getting a general advance of technology In what way?

      I suppose this concept goes straight past your head You're making it out to be way more than it is. The taxpayers paid for it. How do you act like IBM is doing them a favor?

      disseminating half-baked rants You can give that up now. Even MH42 has begun to realize that my observations have been correct.

      let you in on the secret that its development followed the same path. And it was taxpayer funded to begin with, and nobody is cutting the taxpayers any breaks on subscriber fees.
      --
      the NPG electrode was replaced with carbon blac
    5. Re:Investment and profit by heinousjay · · Score: 2, Interesting

      In what way?

      Faster interconnects between components would be the obvious answer.

      You're making it out to be way more than it is. The taxpayers paid for it. How do you act like IBM is doing them a favor?

      I don't even know what this means. I don't think IBM is doing favors for anyone except IBM shareholders. I also think that's just fine and dandy.

      You can give that up now. Even MH42 has begun to realize that my observations have been correct.

      I don't know MH42. I don't care about MH42's opinions. I don't even care if every other observation you've ever made in your life has been correct. This rant is half-baked.

      And it was taxpayer funded to begin with, and nobody is cutting the taxpayers any breaks on subscriber fees.

      That's a complete non sequitur. The development was taxpayer funded. The continuing operation is not. Even if it were, that wouldn't be a break, it would be paying the subscription fees through a different collector.

      Look, just boil your arguments down to their core: you hate profit. You hate the idea of people making money. Good. We get it. Too bad for you, it's not going away anytime soon.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    6. Re:Investment and profit by Anonymous Coward · · Score: 0

      Sure, he could be like you. Nobody is more wrong than you.

      Except you're not passive-aggressive, you are arrogant and aggressive.

    7. Re:Investment and profit by Anonymous Coward · · Score: 1, Funny

      Hey, at least it's not my karma being ass-raped...

  2. Photograph.. by Arceliar · · Score: 2, Informative

    If you want to see what it looks like, it was already featured here. The thing's damn small...

  3. Perfect timing by hcmtnbiker · · Score: 4, Insightful

    ...and the Survey that 29% of US households dont see a need for an internet connection couldnt have been better timed. Anyone else find this slightly ironic?

    --
    If i had one dollar for every brain you dont have, i would have $1.
    1. Re:Perfect timing by Anonymous Coward · · Score: 0

      Not ironic at all, if you look at other statistics, which show consistent growth of gap between the richest and the poor, world wide, not only in the US.

      In that context it's completely logical.

      The growing gap itself is rather tragic, than ironic.

    2. Re:Perfect timing by RicktheBrick · · Score: 1

      There are several ways to entice more people to want a always on internet connection at that speed. First I see a time when hardware will be free. One will just pay for the service. There will be no local storage of data as everything will be stored at the ISP. This will greatly reduce the amount of needed storage since one copy of a movie or one copy of a software program will service thousands of people. This will end the need of either blu-ray or hd-dv since they will be stored again at the ISP on a large hard drive. So this will mean video on demand and mean that people will have total control of when they want to watch any television program or movie even the ones generated by ones own camcorder. One will sign a contract for ISP service and be given the hardware and have access to a huge amount of software and videos. I see a microphone, speaker, and video camera in every room of my house. The video will be encrypted so that it will take a court order for anyone to view. This will mean that the video will be viewed only after a crime has been discovered to have happened there. It will mean that the computer will make sure that there is nothing going wrong there too. If something bad does happen such as fire, flood or even someone becoming incapacitated, the computer could notify someone who could help with the problem. I believe that in the end this will a save a multiple of times more money than the system will ever cost.

    3. Re:Perfect timing by aztracker1 · · Score: 1

      WTF does a financial gap have to do with 29% of households not seeing a need for an internet connection?

      I know a few wealthy doctors that can't live without their internet connection. Likewise, I know some pretty impoverished people that have the internet connection higher on their priority list than many, many other things (Hell, back in the day, some bbs sysops were pretty dirt poor)...

      I think age is a much larger determining factor. The fact that many of the US's citizens are in the Baby Boomer age group, and probably don't use the internet much outside of email at work, or are in early retirement, and likely don't see the need is probably a far larger factor (age).

      --
      Michael J. Ryan - tracker1.info
    4. Re:Perfect timing by osbjmg · · Score: 1

      Not everything is about home internet usage. There is much more to networking and the internet in general, than the home user.

  4. Benefits? by Anonymous Coward · · Score: 0

    Optoisolation.

  5. heheheh by grub · · Score: 5, Funny


    [...] will allow users to download data eight times faster than current technology.

    The MPAA was not available for comment.

    --
    Trolling is a art,
    1. Re:heheheh by Loadmaster · · Score: 2, Funny

      The RIAA, on the other hand, had this to say:

      We are ecstatic about this new development. We are currently retrofitting our squadron of lawyers with this chip so they can file lawsuits against grandmothers, children and all veterans with no legs eight times faster. Truly this is a fantastic day for us. Pretty soon we will generate more court transcripts than music.

      Swi

  6. download faster or slashdot faster? by speculatrix · · Score: 3, Informative

    will allow users to download data eight times faster than current

    using the awesome power of slashdot it'll be possible to bring down servers at eight times the speed!

    On a slightly serious note.. try asking your ISP what their contention ratio is, and their actual bandwidth at their peering points. chances are they won't tell you much detail. In practise they depend on their subscribers not trying to all max out their lines at once which is why P2P is hated by ISPs. Except for the really big companies, many organisations are probably not hosted or colocated with more than 10Mb/s or 100Mb/s anyway due to cost.

    1. Re:download faster or slashdot faster? by Randseed · · Score: 1

      The advantage, however, is that since this technology can be used to upgrade the backbones, it wlll make the ISP networks eight times faster. If the ISPs translated that to the customers at even a ratio of 6:1, then everybody would be happy: The users get 6 times the bandwidth, the ISPs have an additional 2 times the bandwidth to buffer this mess they've created by myopia.

    2. Re:download faster or slashdot faster? by networkBoy · · Score: 1

      Ironically I am hosted with three 100Mbps peering points on my little gripe site. I realize that this is a bit misleading as there are likely 3 or 4 dozen other sites on the same server sharing the same three links...
      -nB

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
    3. Re:download faster or slashdot faster? by Prune · · Score: 1

      Uh, if chances are they won't tell me, why should I ask them? LOL

      --
      "Politicians and diapers must be changed often, and for the same reason."
  7. Replace your SATA cable by Weaselmancer · · Score: 2, Interesting

    IBM tech promises 160Gb/s downloads

    Net speed is nice, but I think these would also make excellent replacements for SATA. Especially when we get those nifty zero-seek time solid state flash drives. Currently, a SATA cable tops out at 3GB/s.

    --
    Weaselmancer
    rediculous.
    1. Re:Replace your SATA cable by Grishnakh · · Score: 3, Interesting

      So what? The disc can't physically read more than that data rate off the platters, so what's the point of having that much speed? Without some major advance, it's unlikely that hard drives will need anything faster than 3 Gb/s for a while. Maybe when we have some kind of super-fast holographic storage, this might be more important.

      There's several good reasons we have SATA: it's fast enough (actually, much more than fast enough; do any drives read faster than 100 MB/s? 3 Gb/s = 375 MB/s), it's easy to use, has small cables which don't impede airflow, and best of all it's cheap. Do you really want to put an optical interface on your hard drive which costs more than the rest of the drive? I'd rather not return to the days of $1000-3000 hard drives.

    2. Re:Replace your SATA cable by witte · · Score: 1

      This is interesting tech nonetheless, i'm sure it will come in handy in a few years if produced in sufficiently high numbers to keep production cost low enough, ibm makes the comm standard open for all OEM manufacturers, and sticks to simply selling the chip in bulk.

      <OTOH, this is probably just something they released from their great-tech-on-hold freezer to manipulate stock price. /paranoid>

    3. Re:Replace your SATA cable by Grishnakh · · Score: 2, Interesting

      This is interesting tech nonetheless, i'm sure it will come in handy in a few years if produced in sufficiently high numbers to keep production cost low enough, ibm makes the comm standard open for all OEM manufacturers, and sticks to simply selling the chip in bulk.

      I agree; this is why I mentioned in another post of mine that this technology makes sense for other applications, such as high-speed interconnects in a supercomputing cluster or data center. But it doesn't make any sense at all for some other things people are bringing up, like 1) hard drive interfaces, or 2) fiber-to-the-home.



      I wouldn't be surprised if this wasn't a big reason behind this. But IBM tends to be at the forefront of technology anyway, with things like IC process improvements, quantum physics research, etc. I think some stupid reporter probably spun this article with all the stupid stuff about transferring movies and such, instead of talking about what the real applications for this tech would be.

    4. Re:Replace your SATA cable by Spy+Hunter · · Score: 1

      Without some major advance, it's unlikely that hard drives will need anything faster
      You mean a major advance like solid-state hard drives? Which, by the time this tech comes out, will have likely grabbed a significant portion of the high-end laptop market, if not more?
      --
      main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
    5. Re:Replace your SATA cable by Grishnakh · · Score: 1

      Um, flash memory is pretty fast, but it's not THAT fast. It's nowhere near as fast as SDRAM, last time I checked. So I still don't see any need for a 160 Gbps optical link for storage devices anytime soon.

  8. Optical traces by G4from128k · · Score: 1

    Next, we need some nifty means of printing/etching/plating optical traces on PCBs. An OGA (Optical Grid Array) would interface chips to board which would route the light to other chips.

    --
    Two wrongs don't make a right, but three lefts do.
    1. Re:Optical traces by Anonymous Coward · · Score: 0

      i suppose you could make a lego version with mirrors and tubes in the bricks

  9. Gallium arsenide "exotic?" by Manchot · · Score: 2, Informative

    Hardly. Practically every device that communicates wirelessly at microwave frequencies has GaAs amplifiers. This includes most cell phones and wireless cards.

    1. Re:Gallium arsenide "exotic?" by amchugh · · Score: 1

      At approximately 1,000,000 metric tons production per year of semiconductor grade silicon vs. approximately 60 metric tons per year production of Gallium Arsenide, I think GaA could be considered exotic.

    2. Re:Gallium arsenide "exotic?" by thpr · · Score: 4, Interesting
      Practically every device that communicates wirelessly at microwave frequencies has GaAs amplifiers

      Five years ago, you were right. Not anymore.

      SiGe is killing GaAs.

      Many of the devices communicating in the higher frequences of the microwave range are based on Silicon Germanium. This includes cell phones.

      Almost ALL WiFi radios are SiGe [PDF warning]. Some have even moved to RFCMOS.

      Most GPS devices are SiGe.

      Oh, and TV Tuners, too.

      Gallium Arsenide *is* exotic, because it has to be done in specialized fabs, not those that run silicon wafers. That significantly drives up the cost vs. SiGe and RFCMOS.

    3. Re:Gallium arsenide "exotic?" by networkBoy · · Score: 1

      Nevermind that GaAs is very fragile and AFAIK 4" wafers are still the norm, while Si fabs are pushing 12".

      -nB

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
    4. Re:Gallium arsenide "exotic?" by WhoBeDaPlaya · · Score: 1

      GaAs is incredibly expensive. You do know that IBM bandgap engineered SiGe to get away from that right ;)

  10. So in other words... by dgatwood · · Score: 1

    From this writeup, I'm having a hard time seeing h ow this differs significantly from an LED. What am I missing?

    --

    Check out my sci-fi/humor trilogy at PatriotsBooks.

    1. Re:So in other words... by Workaphobia · · Score: 1

      I don't understand how this is different from fiber optics as we know it. I was under the impression that you generally had two big-ass expensive routers miles apart, some optical cable between them, and some pricey interface hardware on either side to send and receive information at gigabits a second. From this article it sounds like IBM just invented light.

      --
      Evidently, the key to understanding recursion is to begin by understanding recursion. The rest is easy.
  11. Demand for bandwidth drives invention! by RingDev · · Score: 1

    Anyone else think the arguments against Net Neutrality just got a little weaker?

    -Rick

    --
    "Most people in the U.S. wouldn't know they live in a tyrannical state if it walked up and grabbed their junk." - MyFirs
    1. Re:Demand for bandwidth drives invention! by fyngyrz · · Score: 2, Insightful
      Anyone else think the arguments against Net Neutrality just got a little weaker?

      No. The actual arguments based on greed, not bandwidth. Technical arguments against net neutrality are simply fodder for the common person to argue about. All decisions will be taken based upon degree of profit that appears to be available.

      --
      I've fallen off your lawn, and I can't get up.
  12. Speed Now by Doc+Ruby · · Score: 1

    That transceiver is good for 160Gbps, in 2010, when it might be for sale.

    Meanwhile, what do you do when you need more than 10Gbps? Stuff a PCIe bus with 2x10Gbps boards? Spend a $million on an experimental 100Gbps transceiver?

    It's weird that there seems to be $10 1Gig-e, $450 10Gig-e, $750 2x10Gig-e, and then... nothing. Since even PlayStations include 1Gig-e, surely the horizon isn't really just 10x that speed?

    --

    --
    make install -not war

    1. Re:Speed Now by cheater512 · · Score: 1

      You dont have a gigabit network do you? If you did you'd be demanding more speed than the pathetic 120mb/s you get with gigabit.

      And thats with most computers needing a minute or two after a copying a file just to recover from the ordeal of having that much data shoved in to it at once..

    2. Re:Speed Now by Wesley+Felter · · Score: 1

      For long-haul links there's 40Gbps OC-768 and for data centers there's 2x16Gbps Infiniband.

      Ethernet likes to increase by factors of 10 but 100Gbps is not practical yet, so there's nothing in between.

    3. Re:Speed Now by pr0nboy · · Score: 0

      Its good to see that your idiocy in politics carries over to technology. There is no such thing as a PCIe bus- its point-to-point, moron.

    4. Re:Speed Now by Doc+Ruby · · Score: 1
      Thank you for discrediting yourself in politics, technology and rhetoric in a single post, bitch:

      PCI Express (Official abbreviation PCIe, PCI-E often used, not to be mistaken for PCI-X) is a computer system bus [...]

      I bet you voted for Bush a couple of times, too.

      And you probably have some kind of inane, dishonest excuse that you're somehow still not wrong in spitting pure bullshit like you just did. Spare me.
      --

      --
      make install -not war

    5. Re:Speed Now by Brane2 · · Score: 1

      Well, Wikipedia is WRONG. PCIe is not "bus", since it is strictly point-to-point.

    6. Re:Speed Now by Doc+Ruby · · Score: 1

      No, you are WRONG.

      Because the point-to-point topology of PCIe is dynamically configurable through the PCIe switch, making its points selectable at will. It's backwards compatible with PCI, which is indisputably a bus, so new devices can treat it as a bus.

      Ethernet is still a bus when it's run through a switch.

      Get a grip on what these terms mean now, in practice, not what some abstract semantics say they'll mean when they're invented in a lab.

      --

      --
      make install -not war

  13. I think I may be missing something by WombatDeath · · Score: 1

    A PC using that board would be able to reduce the download time of a typical high-definition feature-length movie from 30 minutes to one second, the company said.

    That's nice, but I don't know of anyone able to provide me with that movie in one second, much less anyone with the bandwidth to receive it (or write it to disk) that quickly. The bottleneck in my downloading experience sure as hell doesn't exist within my beige box.

    Will this actually be useful for anything in 2010?

    1. Re:I think I may be missing something by brunascle · · Score: 1

      my thoughts exactly.

      until ISPs offer much more bandwidth, the only place i see this being useful is on a LAN.

    2. Re:I think I may be missing something by Anonymous Coward · · Score: 0


      And what hard drive (or array) is fast enough to store a file that size in one second. Do any PCs even have RAM that fast?

    3. Re:I think I may be missing something by Anonymous Coward · · Score: 0

      Supercomputers and cluster computing. Got to be sure that nuclear arsenal still smells sweet if not daisy fresh.

    4. Re:I think I may be missing something by heroofhyr · · Score: 1

      A PC using that board would be able to reduce the download time of a typical high-definition feature-length movie from 30 minutes to one second, the company said. Jesus Christ. Only 30 minutes for a HD full-length movie? Someone find out where IBM is downloading its torrents.
      --
      brandelf: invalid ELF type 'KEEBLER'
  14. Beyond the fifth dimension by Anonymous Coward · · Score: 0

    Coming up next: researchers have been able to fit seven octillion Libraries of Congress within a tube the size of a small dog.

  15. Hah. by rackhamh · · Score: 3, Funny

    What four-letter word best describes what this technology will be used to access?

    "data"

    What?

  16. That would be groovy by WombatDeath · · Score: 2, Funny

    "Sorry, can't stop - have to take my seven octillion Libraries of Congress for a walk".

    1. Re:That would be groovy by stud9920 · · Score: 1

      Obligatory "Windows Vista will now download in less than 2 days" post

  17. 160 Gig just 10 Gb/s muxed times 16 by Anonymous Coward · · Score: 0

    Nice work. But they are merely taking state of the commercial state of the art (10 Gbit/sec) and muxing 16 together. Not a radical leap, a tricky packaging job no doubt.
    -entropyfoe

  18. How is this useful for the near future? by Grishnakh · · Score: 1, Insightful

    I actually read (quickly) TFA, and I don't see how this is useful at all for the applications they're envisioning. In a high-performance data center or supercomputer cluster, sure, 160 Gbps links might be quite useful. But for connecting homes to the internet? Sorry, I don't see it.

    For one thing, this technology is far faster than anything we already have, or what anyone is demanding. Add up a fast internet connection, VoIP, and a few TV channels in HD, and you still don't come close to needing 160 Gbps. We already have optical networks developed for connecting homes to these services, and they're nearing deployment. Their name is PON, or passive optical network. This FA doesn't give any details of this 160 Gbps stuff, but can it travel 60 km without any amplification? That's basically a requirement for economically deploying fiber to peoples' homes. Just because a particular fiber-optic technology may be useful for some applications, like short point-to-point links, doesn't mean it's useful for extremely long-distance use as may be the case for residential use.

    PON is already here and developed; it supports TV, voice, and data with a 2.4 Gbps downstream rate (1.2 up). What would we ever need 160 Gbps for within the next 20-30 years? Just how many Blu-Ray discs do you need to transfer at once?

    1. Re:How is this useful for the near future? by SwedishPenguin · · Score: 1

      Obviously it wouldn't be used to connect peoples homes (at least not in the foreseeable future), but ISP's and backbone providers could probably have some need for this, especially considering that bandwidth to customers is increasing. I have a 100 Mbps fiber connection in my apartment, it would "only" take a residential area of 1600 such apartments downloading/uploading at full capacity to max out this chipset. Now imagine this on a bigger scale, hundreds of thousands of households, a medium sized city. This could probably come in pretty handy for operations like that.

    2. Re:How is this useful for the near future? by Anonymous Coward · · Score: 0

      The whole origonal article seems pretty brain dead. Its comparing current WAN speeds with
      new fibre LAN speeds, and, it uses as an example appliction -- dowloading a movie --
      something thats definately a "home" user application.

      Yes the chipset is nice, but it wont do you much good until you can persuade your
      local telco to lay fibre optic to your door.
      The whole point of ADSL as far as the Telcos were concerned was it reused existing copper wiring. Cable TV is only available in densly populated areas because of the expense of laying all that coax wire.

      I predict it will be 20 years before you can get an ISP to lay fibre to your door.

    3. Re:How is this useful for the near future? by Grishnakh · · Score: 1

      The whole origonal article seems pretty brain dead. Its comparing current WAN speeds with new fibre LAN speeds, and, it uses as an example appliction -- dowloading a movie -- something thats definately a "home" user application.

      I agree on the brain dead part. The reporter is an idiot, trying to make a technology useful in a data center relevant to people who he thinks have no concept of things other than downloading movies at home. Most people have heard of data centers by now, especially anyone reading articles about optical transceivers.

      Yes the chipset is nice, but it wont do you much good until you can persuade your local telco to lay fibre optic to your door.

      I don't believe it would be useful for that, either. The signal strength is probably too low for that, or there's some other factor that makes this usuable for long-range applications. It's probably like running gigabit ethernet on copper from the CO to your house--it wouldn't work. As I pointed out in another post, the telcos are moving to PON: passive optical networks. They have extremely long ranges without requiring any repeaters.

      I predict it will be 20 years before you can get an ISP to lay fibre to your door.

      You're wrong about that. Verizon is already moving forward with installing fiber to people's homes. It's going to happen pretty quickly, at least in the more urban (read: more profitable) areas. The telcos have fallen way behind the cable-cos, and they're eager to catch up. They can't do that by relying on twisted-pair. With fiber, they're going to offer real high-speed internet (not this slow-ass DSL stuff), phones, and TV too.

      Of course, after the miserable experiences I had with Qwest where I live, I'm not sure I'd ever go back, but more competition certainly can't hurt. After all, using Qwest for your internet connection means you're stuck using MSN for your ISP. Yuk (been there, done that, never doing it again).

  19. Buying up the "old" ones on E-bay by aegl · · Score: 2, Funny
    So this new thing can download 8-times faster than the previous generation.

    It will take just one second to download a complete HD movie.

    I think I can survive with waiting 8 seconds to download a movie (it will take me 90+ minutes to watch it anyway).

    So I'll be looking to buy up some of the "old" cards when people toss them out to upgrade to these new cards.

  20. 160Gb/s may be limited to on-campus distances by viking80 · · Score: 1

    At 160Gb/s, each bit is about 1mm long in the fiber. The dispersion of a fiber will smear away the eye in a kilometer. Using zero dispersion fiber causes problems with DWDM, so this may only be usable in a data center.

    Since bundles 10Gb/s X 16 are available as single plug, there will be little practical difference for users unless it is cheaper than the 10Gb/s X 16 bundles.

    --
    don't cut it off www.mgmbill.org
    1. Re:160Gb/s may be limited to on-campus distances by owlstead · · Score: 1

      "At 160Gb/s, each bit is about 1mm long in the fiber. The dispersion of a fiber will smear away the eye in a kilometer. Using zero dispersion fiber causes problems with DWDM, so this may only be usable in a data center.

      Since bundles 10Gb/s X 16 are available as single plug, there will be little practical difference for users unless it is cheaper than the 10Gb/s X 16 bundles."

      Well, that seems to be the idea of the article. If there is any way to bring our company network up to this speed at low cost, I would rather have it now than tomorrow. Allthough the current servers would probably slow everything down to a crawl anyway.

  21. Wow by CasperIV · · Score: 1

    Your very optimistic. Of course, who ever posts that first copy of a movie that everyone references will be hit with a billion dollar lawsuit by the MPAA. They would scream bloody murder if it got even easier for people to collaborate. The biggest opponent to that Utopian ideology is going to be businesses and the conspiracy theorists.

    1. Re:Wow by networkBoy · · Score: 1

      "The biggest opponent to that Utopian ideology is going to be businesses and the conspiracy theorists."

      Sadly,
      I work for a large multinational in the computer industry.
      I also am a privacy nut, thus you will find none of my content (unless encrypted on my local machine prior to upload) on the ISP's servers.
      -nB

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
  22. Old hat for Nortel and JDS by Anonymous Coward · · Score: 0

    Nortel JDS

    Somehow its news if IBM does it? Ask Nortel and JDS, the market just is not there. Though perhaps they can flog their warehouses full of this stuff at IBM, if IBM thinks the telco's are willing to replace the copper network with fiber. (fat chance)

    And who is going to lay fiber to my house? They've been talking about it since 1989. It's not going to happen. The cable company won't even lay coax out here. (and I'm only a 20 minute drive from an urban center).

    Fiber to the home? I'll believe it when I see it, and I doubt I ever will. (And no, prototype communities don't count. It must be as ubiquitous as copper is today.)

    1. Re:Old hat for Nortel and JDS by Anonymous Coward · · Score: 0

      Addendum: The only way we're ever going to see high speed access everywhere is if it uses the existing copper network. Its going to take a change in thinking. A new more efficient way of converting digital TCP/IP packets to analog for transmission on copper over long distances, some combination of DAC-ADC processes perhaps using a Fourier transform of some kind. The existing copper network can carry huge amounts of analog information. The typical voice conversation even in the limited frequency range of the telephone contains huge amounts of information, it is simply a matter of cleverly converting digital information into an analog signal as information rich as a human conversation. (More efficiently than existing analog modems) That is the only way it will happen on a continent as large as North America. Replacing the copper network with fiber is just not viable in a capitalist economy that covers such a large geographic area.

  23. I Don't Get It by Nom+du+Keyboard · · Score: 2, Insightful
    allow users to download data eight times faster than current technology. IBM cited the rising demand for digital media such as movies as the driving force behind the new technology.

    I don't see how this is going to make my cable connection run any faster, which is the only part of downloading movies faster that would have any effect on me.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  24. People, not money. by FuzzyDaddy · · Score: 1
    Does that mean that the taxpayers will receive a discount on the final product when it hits store shelves?

    Actually, it was the citizens, not the taxpayers, that funded this. Money is collected by the government as representatives of the citizenry. Your right to control the government comes not from the money you pay into it; it comes from being a citizen.

    I pay a solid middle class share of my taxes - it shouldn't give me any more say than the guy who makes nothing, or any less than the guy who pays ten times what I do.

    Of course, as a DC resident, I am a second class citizen.

    --
    It's not wasting time, I'm educating myself.
    1. Re:People, not money. by HomelessInLaJolla · · Score: 1

      As history plays it out, though, the big businesses are more than happy to take the money from the government to fund their business and, while the executives/VPs/head researchers walk away with six and seven figure yearly salaries, the front line researchers get burned out for hardly average salaries and the technology, rather than being available freely to the citizens and taxpayers who ultimately funded it, is sold for a handsome profit first to the military (which is more taxpayer money) and then to the consumers.

      Anyone with an eighth grade mathematical education should be able to see the obvious pyramid scam.

      --
      the NPG electrode was replaced with carbon blac
  25. Get on the Bus by Doc+Ruby · · Score: 1
    More of the PCI Express experts who are somehow "wrong" while you, a nobody, are somehow right. Let Jon Stokes explain it to you:

    In a point-to-point bus topology, a shared switch replaces the shared bus as the single shared resource by means of which all of the devices communicate. Unlike in a shared bus topology, where the devices must collectively arbitrate among themselves for use of the bus, each device in the system has direct and exclusive access to the switch. In other words, each device sits on its own dedicated bus, which in PCIe lingo is called a link.


    Those links together are collectively known as a bus, though everyone knows it's switched. Because, like ethernet through a switch, it is used like a bus, though many bus problems are solved by the switch.

    That's the reality. If you insist on dogmatism, you can get off the bus, and lose track of the actual use of these technologies.
    --

    --
    make install -not war

    1. Re:Get on the Bus by pr0nboy · · Score: 1

      Okay- then why don't you point out anything in the PCIe spec that refers to it as a bus (I'll accept anything from the 1.0, 1.0a, 1.1, or 2.0 specs). They use the word "link" religiously. I wonder why that is...

      This will be fun.

    2. Re:Get on the Bus by Anonymous Coward · · Score: 0

      WTF are you talking about? The most basic definition of a bus is an interface that can logically connect more than 1 peripheral using the same wire. PCI-E and Switched Ethernet certainly do not fit this definition. It doesn't matter what it is "used" like - a bus is a bus and a link is a link, and they are different. That is even what your quote says.

      I suggest you stop your nonsense argument because it is only making it readily apparent how clueless you are on the subject.

  26. Buses by jlebrech · · Score: 0

    For throughput I wonder it that kind of speed could rival the traditional copper busses on motherboards.