You can watch the superbowl for $1 with commercials, or $30 without
You can watch the superbowl with commercials and look at pop-ups and buy the things they promote. I live in the other side of the globe and must pay about $0.10 per megabyte of pop-ups intended for you and unusable for me. Since our average income is about 20 times less than yours, multiply $0.10 to 20.
Why should I pay 20-fold for your ability to watch superbowl for $1?
I live in Russia where a) It's illegal to use anything 2.4 GHz without a costly permit; b) It's illegal to transmit anything except the speech on CB band, c) Severity of law is compensated with inactivity of law enforcement, d) Typical income is $100/month and e) All equipment is much more expensive due to import taxes.
So, I try to design something similar, closing my eyes to all legalities since the law simply cannot be observed. There are 2 projects - 2400/4800 bps CB modem and the 115200 bps TRX working on ChM/FM band (63..108 MHz).
I try to use the existing AX-25 layer. It's part of Linux kernel, there is WAMPES package that hopefully works under FreeBSD. I have no idea about TCP/IP over AX25 under Windows - I am BSD specialist and don't know Windows at all. Please recommend me some free/opensource or at least shareware TCP/IP over AX25 for Windows, if you can.
The 115200 project uses TDA7021 as both the RX and TX exciter, PIC16F873 and some circuitry. Duplex mode will require 2 devices per station. The projects are in initial state since they will be required only when the communications authority introduces the metered phone access, that is being planned during more than 20 years, discussed but not introduced. Maybe the government is afraid of people's fury.
mailto:tango-hotel-oscar-romeo at india-romeo-kilo-dot-romeo-uniform.
You can possibly keep it in oxygen-less reducing atmosphere (For instance, propane-butane mix from the gas cooker) while you download the CD ripping software.
Some time ago I've placed the Operation Thetan III on my page. Then I was contacted by the legal dept of my ISP and they claimed that according to the letter from Religious Technology Center I violate the copyright. I confessed that I really violate the copyright hoping that I do this under an aegis of "Extreme necessity" article of local criminal code, and we agreed that I will stop the violation if the due Court will sentence me to do so. Of course, RTC was not going to sue in Siberia.
Let's return to MPAA. When somebody places the movie to the 'Net, it's a violation and it can be proven by copyright holder. But when somebody obtains the copyrighted material then he can not prove that the material is copyrighted before he obtains the material. In other words, every receiver may say "Yes, Your Honour, I've obtained the movie from the network. Then I have seen the copyright marks and promptly erased it". I have no idea about your law, but in Russia it's so.
Moreover. If the sender shows the files to everybody including the MPAA, in order to find the receiver you need a sniffer somewhere in the network. The sniffer may be illegal, and I hope that every ISP that wants to keep it's clients will NOT let anybody to sniff without the due court order. At least it's a base for countersuit.
The distribution boxes in a cable network are made so that their loss is always equal - independently of real load connected. If it were not true, it would mean that the signals reflected from the free ends of cables and the parasytic signals from heterodynes spoil the signal.
The only method to really spoil the signal is the connection directly to the backbone cable with your own distribution box or without it - just in parallel:-(
The Morris worm was a result of assumption that the Internet is safe (It was early enough for Internet hosts to be rare and well-guarded things). When Morris worm was found the holes were quickly plugged since the underlying security model allowed so. The buffer owerflows are BUGS, not DESIGN FLAWS. The R-utilities are just R-shell over the security kernel that to that moment withstood about 15 years of LOCAL hacking.
Now, compare it with Windows where the security is NOT builtin; moreover, the security is made a victim to ease-of use: Click attachment to start a worm.
And the User saw the Windows that was desired because it makes Knowledge not needed.
I've used Unix v.6 (The first production UNIX) and Unix v.7 in real production work (The data collection system of Soviet time and frequency etalon copy) and can confirm that the protection primitives (file attributes, login system, ownership rights a.s.o.) were basically the same as in FreeBSD I use now.
And the second: any GOOD protection model should GRANT, not DENY. The client should PROVE it's rights IN ORDER to gain access to the resource (Such as Unix does). The system that DENIES access is always subject to threat that was not included to the denial list.
Yes, it removes extension, deviation and pronation. But it causes your hands to either HANG or to be supported by the edge of a palm during rest times. It will be noncomfortable after a couple of hours. In comparison, when you don't use the usual keyboard your hand is supported by all the palm surface which is much bigger and specifically able to withstand it. And your fingers rest on F and J keys, so you may immediately lift your hands and begin touch-typing.
Now, look at the position of arrow keys. In order to use them you must lift your LEFT hand, carry it over the keyboard and land it on the arrows. Do this some thousand times a day and you either become a weightlifter or sufferer. It will be usable only when you don't use the arrows and use the mouse instead. Since the ordinary people press the arrows with RIGHT hand, attempt to do so on this keyboard will result to MUCH MORE deviation.
Possibly the Happy Hacking Keyboard in this form will work much better than the original 101-key because it has much less keys and so they ALL can be placed vertically.
Yes, the Squadron of Orange Geese, oops... The fleet of roaming digipeaters is more efficient than the point-to-point connections requiring a lot of power or the cellular network requiring the ground-based backbone. But:
The roaming digipeaters use the power which is much more expensive than the cellular base power: the battery power of tiny pocket devices. It means that my cellphone will, say, work during 1 hour instead of 8 but the collaborating cellphones will provide the absolute coverage without gaps. I am not sure it's worthy the battery.
And the second. The business model of the cellular as well as wireless Internet providers is to spend their money for the equipment and to collect fees. So they can invest to the cellular networks. The fleet of roaming repeaters may be technologically efficient but IMO there is no incentive for services provided with such devices, which means that the self-supported community without the big business support will never buy enough devices to drive prices low. Moreover, the self-supported community is the competitor for the traditional cellular systems and as such will be suppressed.
As an illustration: There is a voice-over-IP technology. There is 802.11 technology. Show me the 802.11 voice-over-IP pocket phone with builtin repeater. I fear such a device will never be able to compete.
Once upon a time, I saw a big company producing some classified devices for the Soviet military-industrial complex. Of course, the company had an accounting department. And there was a company accounting database. It was a single file about 80 MBytes long (The typical drive size these days was 20-40 MB). To simplify the access tasks, the programmers that created the database software decided that all the data from time immemorial are to be kept in this file. The file grows with every operation, and since the data are thought to be needed forever there is no method to remove irrelevant entries.
The programmers didn't imagine that in pair of years the base will be so big that it will not fit into any available HDD.
Maybe it will be the lesson for some people who are going to misuse the file system features?
Yes, I have read a big part of the discussion. And I must notice the following that nobody IMHO has mentioned:
All the GPS receivers use the well-documented format for data exchange. If somebody produces a program that uses the GPS receiver as a key device, it's elementary to make the receiver simulator. You don't need any Faraday's cages or GPS signal generator - you only feed data via RS-232 channel.
Of course, somebody can require that the special receiver with the builtin digital certificate is needed. But this receiver, being special, will be prohibitively expensive.
The idea if creating local computer networks using the Chinese laser pointers is widely discussed here in Russia. The link can be made, and some enthusiasts really make it. The troubles come later.
Firstly, the link either should support Ethernet or be connected to the PC serving as a router. It's easy to make a, say, 38400 bps link using the laser pointer and infrared receiver from the TV remote control, but in the country where the average salary is $100 per month it will be impossible to find money for the router PC.
The 10-mbit/s link is much more sophisticated, and if you can produce it you can much easier obtain enough money to buy a 802.11. At least, living in a big enough city I cannot see-and-buy all the parts necessary to produce the link having the full schematics. Of course, I can order them and risk obtaining everything except the one critical part.
I dont't discuss the special extra rugged tripod for the roof-mounting of all this illumination, bands of young vandals, necessity to obtain the roof access permit (I don't need it, but in Moscow it's a rule!), old crazy ladies calling KGB and informing about the martians landing on the roof, necessity to place somewhere a router PC that produces the infernal noise and the Communication Supervision authority that begins to want a lot of money every time when the network gives a first cent of profit.
So the typical Russian LAN still uses the UTP, Ethernet and the military phone cables hanging between the buildings. These cables give the excellent ranges!
Because the CDMA (UWB is CDMA) signals are not orthogonal. If you use the traditional radio you use the filters that ideally don't let other channels pass in, and really suppress them as well as needed.
But for the CDMA it's not true. The signals are not ortogonal. Other channels appear to be like a noise, and the only method I know to make them fully ortogonal is the one that is used in CDMA cellular phone - use of special code sequences that produce really terrible spectrum with a lot of narrow peaks.
Then, the fundamental power laws come into existence. To transmit a bit you need some energy to be received, and this energy cannot be decreased. If you spread the energy over the spectrum, the spectral density will be decreased but the energy itself will not. You needed 600 mW for AMPS and you still need it for CDMA.
Then, for instance, if you transmit 1 mbit/s over 1 MHz channel to 1 kilometer, you will need about 10 dB over the noise (Or less, if your coding scheme is really good). If you spread the signal over 1 GHz, the s/n at receive end will be about -20 dB and your receiver will be able to recover it. But on 100 m from the transmitter the s/n will be 0 dB - quite an interference for anything using any part of the 1-GHz band. In 10 meters it will be 20 dB and nobody will be able to use the band at all. So the CDMA towers command the phones to adjust the power levels in less than 1 dB increments to keep them equal. It cannot be done in usual conditions.
It's cheaper and easier where the local legislation doesn't require you to register the link, and terribly expensive where you pay per transmitter per kilohertz. Russia (And maybe.cz) is such a country.
One of Irkutsk ISP's works with 802.11b only. The license fees are about 1000 roubles per month while the average monthly income is 3000 roubles (30 roubles are 1 US$). And the second ISP uses 802.11b covertly. (The prices may be outdated)
There are even more strange countries. For instance, German telecoms have per-minute phone fees but legal CB data, so Germans produce 9600-baud CB modems and use the CB network.
Also, don't forget that the 802.11 requires either the expensive access point placed somewhere on a roof or the thick and expensive cable from a roof to your computer.
I think they already avoid any explosion that makes a lot of nontraceable fragments. (The Gorbachev's asymmetric answer to US Star Wars program was reportedly a bunch of asymmetric nuts to be sent to collision with US ICBM). The problem is that the used rockets will orbit the Earth indefinitely. As I know this problem is being solved: during one of shuttle flights it was shown that the tethered satellite tends to induce currents along the tether which gives a lot of electricity and creates drag which lowers the orbit without any need of propellant. You only attach the cable and electrode to every booster and eject it after use (Or, if you like, pump electricity into the cable and obtain the propulsion without propellant).
My potential server room will be (If my mother agrees, of course) a box of about 0.5*0.5*2 meters located above the passway to the standard micro Soviet kitchen of Khrushchev epoch. Really, in winter (-31 deg. Celsius day temperature NOW) I can drop the heat into the kitchen, it's enough.
But in summer! Street temperatures are higher than +30C, and with my $100/month budget it's difficult to buy a split-system air conditioner.
The decision is very simple: There is always a lot of cold water in the tap. I only need a used car radiator and a fan. Add the thermostatic controller and electromagnetic valve according to taste. The water tariff is flat here, and the water from Lake Baikal is always cold. Of course, if the aquifer is being repaired, you are out of luck.
Firstly, I live in Russia. I have a leased-line Internet connection. And I have a verbal agreement that my neighbours pay me some money for Internet after the month if the service is good; I have no obligations except moral ones.
Let us imagine that I have a written contract. This immediately means that I should be registered as an ISP and as the businessperson. Both is a burden that costs much more than my neighbours can pay to me.
And now let us return to the storage problems. If I keep an online backup site I have obligations and am a duly registered businessman and ISP. It's much cheaper for the community to be registered as the "consumers' cooperation" which doesn't produce services and only consumes them, and employ me. Then all the legalities will be the cooperation's President's, not mine.
Disclaimer: I cannot even imagine YOUR scope market. The following message reflects my own preferences, technical and logistical abilities etc. Moreover, any decent scope costs terribly.
I believe the 50 MHz bandwidth is the minimal requirement for debugging the modern equipment (I own 250-MHz scope and in the past had a lot of troubles trying to debug the 5 MHz clocked devices with 5-MHz bandwidth scope. It means that the sampling frequency is at least 100 MHz which excludes any cheap software implementations and requires some PGA.
I also believe that the scope should be a standalone device with optional PC interface.
If you can be satisfied with 33 MHz sampling rate you may use the Scenix/Ubicom SX 100-MHz microprocessor to control any ADC and any graphical LCD display. External ADC clocking will be needed. Also don't forget that the fastest way to make a loop is to open it, so you will need 384 bytes of program ROM to get 128 dots (Maximim for Scenix RAM) at maximum speed. If you need more then look at Ubicom IP2022.
It may be a nice pen-sized scope. You may be proud of it.
For additional info: look at Ubicom website for microprocessors, Philips for ADC chips and Webring for PIC and Scenix related projects (A lot of! You may even find the ready scope project there).
I don't know anything about Doug Engelbart's demo. But I have Unix v.6 experience. Unix v.6 was issued about 1975.
Let's look at some Unix man pages that contain the SEE-ALSO blocks. These blocks contain the addresses of other information blocks that are accessible via keyboard actions and as such are the prior art to the BT claim.
The only thing to do is to find the Unix v.6 manpage with SEE-ALSO block, preferably as an ancient factory printed manual with the official issue date.
I simply don't understand what is a problem. If the CD player can read the disks but the CD-ROM drive cannot, then either:
You can write the software that reads the CD-ROM in raw mode and applies a due correction (May be illegal) or
Just keep one such disk, visit the nearest computer shop and ask for the drive that can play it.
When the market demanded CD-ROM drives that can grab audio, they appeared. When the market will demand the drives that read the protected CD-ROMs, they will appear too.
You have a phone of your ISP. You call them and they tell you the MD5 or at least length and CRC of the antiviral program. And this procedure should be described in the letter.
They who will not follow the recommendations have chosen their fate theirselves. Amen.
Irkutsk region (Siberia, Russia) record for 2.5 mbit/s Wavelan is 47 kilometers, using hi-gain parabolic antennae and the direct line of sight. But the use may contradict US FCC regulations that limit the antenna gain. If you want to risk conflict with FCC and cannot buy the antennae you can use the satellite dishes and make the exciter (don't know precise term for a little antenna in focal point) yourself. If you want to make the hi-gain OMNI you can disassemble the hi-gain cellular or CT2 antenna and make the scaled copy. Remember: Cable losses are terrible and you should place your radio near the antenna.
2.4 mbits/sec means (by very coarse calculations, of course) at least 240 kHz bandwidth and S/N at least 30 dB (Or, if you like, 2400 kHz and S/N at least 0 dB). It means that all the noise produced by the mains (There is a lot of it! When my HDD starts, I have ROAR in my R-399 military grade RX unless I use the special 5/12V filters inside the PC) will be increased 30 dB more. My friend - amateur radio operator - cannot work DX because of mains RFI. And now all his troubles will be increased to 30 dB, and the roar of mains modems will be heard from all the LW radios. Alternatively, all the RF band from 0 to more than 2.4 MHz will be spoiled. It will be more terrible than the famous Russian "Woodpecker" radar that some cold war days ago spoiled all the world SW communication.
Slashdot Mirror
You can watch the superbowl for $1 with commercials, or $30 without
You can watch the superbowl with commercials and look at pop-ups and buy the things they promote. I live in the other side of the globe and must pay about $0.10 per megabyte of pop-ups intended for you and unusable for me. Since our average income is about 20 times less than yours,
multiply $0.10 to 20.
Why should I pay 20-fold for your ability to watch superbowl for $1?
And BTW: What is superbowl?
Hello!
I live in Russia where a) It's illegal to use anything 2.4 GHz without a costly permit; b) It's illegal to transmit anything except the speech on CB band, c) Severity of law is compensated with inactivity of law enforcement, d) Typical income is $100/month and e) All equipment is much more expensive due to import taxes.
So, I try to design something similar, closing my eyes to all legalities since the law simply cannot be observed. There are 2 projects - 2400/4800 bps CB modem and the 115200 bps TRX working on ChM/FM band (63..108 MHz).
I try to use the existing AX-25 layer. It's part of Linux kernel, there is WAMPES package that hopefully works under FreeBSD. I have no idea about TCP/IP over AX25 under Windows - I am BSD specialist and don't know Windows at all. Please recommend me some free/opensource or at least shareware TCP/IP over AX25 for Windows, if you can.
The 115200 project uses TDA7021 as both the RX and TX exciter, PIC16F873 and some circuitry. Duplex mode will require 2 devices per station. The projects are in initial state since they will be required only when the communications authority introduces the metered phone access, that is being planned during more than 20 years, discussed but not introduced. Maybe the government is afraid of people's fury.
mailto:tango-hotel-oscar-romeo at india-romeo-kilo-dot-romeo-uniform.
You can possibly keep it in oxygen-less reducing atmosphere (For instance, propane-butane mix from the gas cooker) while you download the CD ripping software.
Maybe it's offtopic but:
Some time ago I've placed the Operation Thetan III on my page. Then I was contacted by the legal dept of my ISP and they claimed that according to the letter from Religious Technology Center I violate the copyright. I confessed that I really violate the copyright hoping that I do this under an aegis of "Extreme necessity" article of local criminal code, and we agreed that I will stop the violation if the due Court will sentence me to do so. Of course, RTC was not going to sue in Siberia.
Let's return to MPAA. When somebody places the movie to the 'Net, it's a violation and it can be proven by copyright holder. But when somebody obtains the copyrighted material then he can not prove that the material is copyrighted before he obtains the material. In other words, every receiver may say "Yes, Your Honour, I've obtained the movie from the network. Then I have seen the copyright marks and promptly erased it". I have no idea about your law, but in Russia it's so.
Moreover. If the sender shows the files to everybody including the MPAA, in order to find the receiver you need a sniffer somewhere in the network. The sniffer may be illegal, and I hope that every ISP that wants to keep it's clients will NOT let anybody to sniff without the due court order. At least it's a base for countersuit.
The distribution boxes in a cable network are made so that their loss is always equal - independently of real load connected. If it were not true, it would mean that the signals reflected from the free ends of cables and the parasytic signals from heterodynes spoil the signal.
:-(
The only method to really spoil the signal is the connection directly to the backbone cable with your own distribution box or without it - just in parallel
So the only losses are lost revenue.
Once more.
The Morris worm was a result of assumption that the Internet is safe (It was early enough for Internet hosts to be rare and well-guarded things). When Morris worm was found the holes were quickly plugged since the underlying security model allowed so. The buffer owerflows are BUGS, not DESIGN FLAWS. The R-utilities are just R-shell over the security kernel that to that moment withstood about 15 years of LOCAL hacking.
Now, compare it with Windows where the security is NOT builtin; moreover, the security is made a victim to ease-of use: Click attachment to start a worm.
And the User saw the Windows that was desired because it makes Knowledge not needed.
I've used Unix v.6 (The first production UNIX) and Unix v.7 in real production work (The data collection system of Soviet time and frequency etalon copy) and can confirm that the protection primitives (file attributes, login system, ownership rights a.s.o.) were basically the same as in FreeBSD I use now.
And the second: any GOOD protection model should GRANT, not DENY. The client should PROVE it's rights IN ORDER to gain access to the resource (Such as Unix does). The system that DENIES access is always subject to threat that was not included to the denial list.
Desinfection. Desindoctrination. Defenestration.
Yes, it removes extension, deviation and pronation. But it causes your hands to either HANG or to be supported by the edge of a palm during rest times. It will be noncomfortable after a couple of hours. In comparison, when you don't use the usual keyboard your hand is supported by all the palm surface which is much bigger and specifically able to withstand it. And your fingers rest on F and J keys, so you may immediately lift your hands and begin touch-typing.
Now, look at the position of arrow keys. In order to use them you must lift your LEFT hand, carry it over the keyboard and land it on the arrows. Do this some thousand times a day and you either become a weightlifter or sufferer. It will be usable only when you don't use the arrows and use the mouse instead. Since the ordinary people press
the arrows with RIGHT hand, attempt to do so on this keyboard will result to MUCH MORE deviation.
Possibly the Happy Hacking Keyboard in this form will work much better than the original 101-key because it has much less keys and so they ALL can be placed vertically.
Windows stinks mice
Yes, the Squadron of Orange Geese, oops... The fleet of roaming digipeaters is more efficient than the point-to-point connections requiring a lot of power or the cellular network requiring the ground-based backbone. But:
The roaming digipeaters use the power which is much more expensive than the cellular base power: the battery power of tiny pocket devices. It means that my cellphone will, say, work during 1 hour instead of 8 but the collaborating cellphones will provide the absolute coverage without gaps. I am not sure it's worthy the battery.
And the second. The business model of the cellular as well as wireless Internet providers is to spend their money for the equipment and to collect fees. So they can invest to the cellular networks. The fleet of roaming repeaters may be technologically efficient but IMO there is no incentive for services provided with such devices, which means that the self-supported community without the big business support will never buy enough devices to drive prices low. Moreover, the self-supported community is the competitor for the traditional cellular systems and as such will be suppressed.
As an illustration: There is a voice-over-IP technology. There is 802.11 technology. Show me the 802.11 voice-over-IP pocket phone with builtin repeater. I fear such a device will never be able to compete.
Once upon a time, I saw a big company producing some classified devices for the Soviet military-industrial complex. Of course, the company had an accounting department. And there was a company accounting database. It was a single file about 80 MBytes long (The typical drive size these days was 20-40 MB). To simplify the access tasks, the programmers that created the database software decided that all the data from time immemorial are to be kept in this file. The file grows with every operation, and since the data are thought to be needed forever there is no method to remove irrelevant entries.
The programmers didn't imagine that in pair of years the base will be so big that it will not fit into any available HDD.
Maybe it will be the lesson for some people who are going to misuse the file system features?
Yes, I have read a big part of the discussion. And I must notice the following that nobody IMHO has mentioned:
All the GPS receivers use the well-documented format for data exchange. If somebody produces a program that uses the GPS receiver as a key device, it's elementary to make the receiver simulator. You don't need any Faraday's cages or GPS signal generator - you only feed data via RS-232 channel.
Of course, somebody can require that the special receiver with the builtin digital certificate is needed. But this receiver, being special, will be prohibitively expensive.
The idea if creating local computer networks using the Chinese laser pointers is widely discussed here in Russia. The link can be made, and some enthusiasts really make it. The troubles come later.
Firstly, the link either should support Ethernet or be connected to the PC serving as a router. It's easy to make a, say, 38400 bps link using the laser pointer and infrared receiver from the TV remote control, but in the country where the average salary is $100 per month it will be impossible to find money for the router PC.
The 10-mbit/s link is much more sophisticated, and if you can produce it you can much easier obtain enough money to buy a 802.11. At least, living in a big enough city I cannot see-and-buy all the parts necessary to produce the link having the full schematics. Of course, I can order them and risk obtaining everything except the one critical part.
I dont't discuss the special extra rugged tripod for the roof-mounting of all this illumination, bands of young vandals, necessity to obtain the roof access permit (I don't need it, but in Moscow it's a rule!), old crazy ladies calling KGB and informing about the martians landing on the roof, necessity to place somewhere a router PC that produces the infernal noise and the Communication Supervision authority that begins to want a lot of money every time when the network gives a first cent of profit.
So the typical Russian LAN still uses the UTP, Ethernet and the military phone cables hanging between the buildings. These cables give the excellent ranges!
Because the CDMA (UWB is CDMA) signals are not orthogonal. If you use the traditional radio you use the filters that ideally don't let other channels pass in, and really suppress them as well as needed.
But for the CDMA it's not true. The signals are not ortogonal. Other channels appear to be like a noise, and the only method I know to make them fully ortogonal is the one that is used in CDMA cellular phone - use of special code sequences that produce really terrible spectrum with a lot of narrow peaks.
Then, the fundamental power laws come into existence. To transmit a bit you need some energy to be received, and this energy cannot be decreased. If you spread the energy over the spectrum, the spectral density will be decreased but the energy itself will not. You needed 600 mW for AMPS and you still need it for CDMA.
Then, for instance, if you transmit 1 mbit/s over 1 MHz channel to 1 kilometer, you will need about 10 dB over the noise (Or less, if your coding scheme is really good). If you spread the signal over 1 GHz, the s/n at receive end will be about -20 dB and your receiver will be able to recover it. But on 100 m from the transmitter the s/n will be 0 dB - quite an interference for anything using any part of the 1-GHz band. In 10 meters it will be 20 dB and nobody will be able to use the band at all. So the CDMA towers command the phones to adjust the power levels in less than 1 dB increments to keep them equal. It cannot be done in usual conditions.
You lose your money when you pay for the thing, not when you throw it to the garbage can.
See Previous-Investment trap here.
It's cheaper and easier where the local legislation doesn't require you to register the link, and terribly expensive where you pay per transmitter per kilohertz. Russia (And maybe .cz) is such a country.
One of Irkutsk ISP's works with 802.11b only. The license fees are about 1000 roubles per month while the average monthly income is 3000 roubles (30 roubles are 1 US$). And the second ISP uses 802.11b covertly. (The prices may be outdated)
There are even more strange countries. For instance, German telecoms have per-minute phone fees but legal CB data, so Germans produce 9600-baud CB modems and use the CB network.
Also, don't forget that the 802.11 requires either the expensive access point placed somewhere on a roof or the thick and expensive cable from a roof to your computer.
I think they already avoid any explosion that makes a lot of nontraceable fragments. (The Gorbachev's asymmetric answer to US Star Wars program was reportedly a bunch of asymmetric nuts to be sent to collision with US ICBM). The problem is that the used rockets will orbit the Earth indefinitely. As I know this problem is being solved: during one of shuttle flights it was shown that the tethered satellite tends to induce currents along the tether which gives a lot of electricity and creates drag which lowers the orbit without any need of propellant. You only attach the cable and electrode to every booster and eject it after use (Or, if you like, pump electricity into the cable and obtain the propulsion without propellant).
My potential server room will be (If my mother agrees, of course) a box of about 0.5*0.5*2 meters located above the passway to the standard micro Soviet kitchen of Khrushchev epoch. Really, in winter (-31 deg. Celsius day temperature NOW) I can drop the heat into the kitchen, it's enough.
But in summer! Street temperatures are higher than +30C, and with my $100/month budget it's difficult to buy a split-system air conditioner.
The decision is very simple: There is always a lot of cold water in the tap. I only need a used car radiator and a fan. Add the thermostatic controller and electromagnetic valve according to taste. The water tariff is flat here, and the water from Lake Baikal is always cold. Of course, if the aquifer is being repaired, you are out of luck.
Firstly, I live in Russia. I have a leased-line Internet connection. And I have a verbal agreement that my neighbours pay me some money for Internet after the month if the service is good; I have no obligations except moral ones.
Let us imagine that I have a written contract. This immediately means that I should be registered as an ISP and as the businessperson. Both is a burden that costs much more than my neighbours can pay to me.
And now let us return to the storage problems. If I keep an online backup site I have obligations and am a duly registered businessman and ISP. It's much cheaper for the community to be registered as the "consumers' cooperation" which doesn't produce services and only consumes them, and employ me. Then all the legalities will be the cooperation's President's, not mine.
Disclaimer: I cannot even imagine YOUR scope market. The following message reflects my own preferences, technical and logistical abilities etc. Moreover, any decent scope costs terribly.
I believe the 50 MHz bandwidth is the minimal requirement for debugging the modern equipment (I own 250-MHz scope and in the past had a lot of troubles trying to debug the 5 MHz clocked devices with 5-MHz bandwidth scope. It means that the sampling frequency is at least 100 MHz which excludes any cheap software implementations and requires some PGA.
I also believe that the scope should be a standalone device with optional PC interface.
If you can be satisfied with 33 MHz sampling rate you may use the Scenix/Ubicom SX 100-MHz microprocessor to control any ADC and any graphical LCD display. External ADC clocking will be needed. Also don't forget that the fastest way to make a loop is to open it, so you will need 384 bytes of program ROM to get 128 dots (Maximim for Scenix RAM) at maximum speed. If you need more then look at Ubicom IP2022.
It may be a nice pen-sized scope. You may be proud of it.
For additional info: look at Ubicom website for microprocessors, Philips for ADC chips and Webring for PIC and Scenix related projects (A lot of! You may even find the ready scope project there).
I don't know anything about Doug Engelbart's demo. But I have Unix v.6 experience. Unix v.6 was issued about 1975.
Let's look at some Unix man pages that contain the SEE-ALSO blocks. These blocks contain the addresses of other information blocks that are accessible via keyboard actions and as such are the prior art to the BT claim.
The only thing to do is to find the Unix v.6 manpage with SEE-ALSO block, preferably as an ancient factory printed manual with the official issue date.
"instead an interpolation, substantially equivalent to the original portion 50"
It means that the already-ripped track image can be processed in similar way giving the result equivalent to the audio player's one.
I simply don't understand what is a problem. If the CD player can read the disks but the CD-ROM drive cannot, then either:
You can write the software that reads the CD-ROM in raw mode and applies a due correction (May be illegal) or
Just keep one such disk, visit the nearest computer shop and ask for the drive that can play it.
When the market demanded CD-ROM drives that can grab audio, they appeared. When the market will demand the drives that read the protected CD-ROMs, they will appear too.
You have a phone of your ISP. You call them and they tell you the MD5 or at least length and CRC of the antiviral program. And this procedure should be described in the letter.
They who will not follow the recommendations have chosen their fate theirselves. Amen.
Irkutsk region (Siberia, Russia) record for 2.5 mbit/s Wavelan is 47 kilometers, using hi-gain parabolic antennae and the direct line of sight. But the use may contradict US FCC regulations that limit the antenna gain. If you want to risk conflict with FCC and cannot buy the antennae you can use the satellite dishes and make the exciter (don't know precise term for a little antenna in focal point) yourself. If you want to make the hi-gain OMNI you can disassemble the hi-gain cellular or CT2 antenna and make the scaled copy. Remember: Cable losses are terrible and you should place your radio near the antenna.
2.4 mbits/sec means (by very coarse calculations, of course) at least 240 kHz bandwidth and S/N at least 30 dB (Or, if you like, 2400 kHz and S/N at least 0 dB). It means that all the noise produced by the mains (There is a lot of it! When my HDD starts, I have ROAR in my R-399 military grade RX unless I use the special 5/12V filters inside the PC) will be increased 30 dB more. My friend - amateur radio operator - cannot work DX because of mains RFI. And now all his troubles will be increased to 30 dB, and the roar of mains modems will be heard from all the LW radios. Alternatively, all the RF band from 0 to more than 2.4 MHz will be spoiled. It will be more terrible than the famous Russian "Woodpecker" radar that some cold war days ago spoiled all the world SW communication.