You are grossly underestimating the allure of metrics. One of today's management fads is to reduce everything to numbers. If it can't be easily measured, it must not be important. Managers are told to set measurable goals in their performance planning. This forces them to look for things that can be measured, whether they are material to the success of the business or not. Joe Shmoe being five minutes late may not be important. Joe Shmoe screwing up a metric that is one of his manager's performance goals is a major problem, as it directly affects his manager's performance evaluation and status in the company.
NASA gets its frequency allocations through the same process as other government agencies. The ITU makes international allocations. The FCC (civilian) and NTIA (military/government) make domestic allocations. The FCC and NTIA have to cooperate with each other on spectrum policy.
What you've failed to consider is that IPV4 was developed in an era when 56 kbps was considered to be a high-speed link for a WAN. Now that link speeds are many orders of magnitude faster, the engineering tradeoffs are quite different. Accepting a certain degree of "bloat" in packet headers may be acceptable if it provides other benefits, like faster routing and switching.
25 years ago, I used to write software almost exclusively in assembly language. Using your logic, I should still be writing software in assembly language for 16-bit processors. After all, that is the more efficient use of valuable transistors and silicon.
NAT is like preventing your children from running out into the street by chopping off their legs. Yes, it works, but it has some unpleasant side-effects.
What's worse, NAT breaks IPSEC, making it difficult to improve security by using authentication and encryption.
Steganography was a problem during World War II. Mail was subject to inspection and censorship. There were concerns about espionage and attempts to evade censorship. Mail was checked for invisible ink and anything else that might be used to hide messages. Some people used steganography to save money. Since there were special subsidized postal rates for mailing newspapers, messages could be sent by using a pin to poke holes in the paper, spelling out the characters of the message. Some soldiers tried to evade the censor so that they could tell their family where they were located. Censors were suspicious of weather reports and other statistical information that might be used to hide messages.
It's a common manufacturing technique for calculators. The factory produces one PC board and puts it in different housings to create multiple models with different features.
Sometimes there are jumpers on the PC board to enable/disable features.
Property rights are a social convention, whose definition is dependent on the norms of the society. This is especially true for abstract forms of property. Current law is supposed to reward creativity and ingenuity, not the simple application of labor.
For a current example, many current production cell phones include a camera and audio recorder. With the prevalence of cell phones, rules that treat cameras and audio recorders as unusual devices will need to be changed. I ran into this problem when I was selected for jury duty. A sign at the entrance to the courthouse said that these devices were prohibited. In the jury lounge, it quickly became obvious that most of the jurors were carrying cell phones. I suspect that most of the lawyers were also carrying these devices. If the security personnel had wanted to be hard-asses about it, they could have effectively shut down the courthouse for the day by refusing entry to anyone carrying a cell phone.
In the future, electronic vision correction/enhancement may become common for people with vision problems that are not correctable with conventional lenses. Now the video camera is no longer a toy, it is part of a medical device. A storeowner who tells his customers that medical devices are prohibited is going to be in big trouble, very quickly.
Real-time systems must meet hard, or in some cases soft, timing constraints. Determinism is usually more of a concern than raw speed. A high-level language may be appropriate if it reduces total system costs and development time.
The cable company doesn't have to be the one that provides the equipment. There is an open standard for digital cable. Television sets are already being introduced with integrated digital cable tuners. The cable company supplies a security module that plugs into the tuner.
Check out eBay. You can get used and new TI calculators for considerably less than retail price. There are a lot of people who buy a calculator for a course or two and then sell it on eBay.
Before digital electronics became practical, many launch vehicles and spacecraft used analog FDM systems for telemetry. Each telemetry parameter is connected to a VCO (voltage controlled oscillator), the VCOs are multiplexed together and used to modulate the transmitter. On the ground, the receiver output is fed into a bank of FM discriminators. The discriminator outputs can be used to drive strip-chart recorders, and fed to an ADC for computer processing. I think they still use it on some price-sensitive applications like weather balloons.
One of my favorite computer architectures is the CDC 6600 PPU (Peripheral Processing Unit), an I/O processor for the CDC 6600. It had 10 complete sets of CPU registers and 10 banks of memory, one for each register set. It would execute one instruction in register set #0, then one instruction in register set #1, then one instruction in register set #2, etc. By continually cycling through the register sets, it behaved like 10 independent processors that could simultaneously execute 10 programs, although at 1/10 the speed of the hardware cycle time. It was a clever way to get 10 independent processors without having all of the hardware that would be needed by the conventional approach.
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A byte is not necessarily 8 bits. The correct term, even if it isn't as widely used, is octet.
You are grossly underestimating the allure of metrics. One of today's management fads is to reduce everything to numbers. If it can't be easily measured, it must not be important. Managers are told to set measurable goals in their performance planning. This forces them to look for things that can be measured, whether they are material to the success of the business or not. Joe Shmoe being five minutes late may not be important. Joe Shmoe screwing up a metric that is one of his manager's performance goals is a major problem, as it directly affects his manager's performance evaluation and status in the company.
You're assuming that the originating host is on the Internet.
Are there any dedicated IPv6 routers that don't cost huge amounts of money?
NASA gets its frequency allocations through the same process as other government agencies. The ITU makes international allocations. The FCC (civilian) and NTIA (military/government) make domestic allocations. The FCC and NTIA have to cooperate with each other on spectrum policy.
25 years ago, I used to write software almost exclusively in assembly language. Using your logic, I should still be writing software in assembly language for 16-bit processors. After all, that is the more efficient use of valuable transistors and silicon.
You don't use multicast. There are large organizations that use it for transferring huge quantities of data across the globe.
NAT is like preventing your children from running out into the street by chopping off their legs. Yes, it works, but it has some unpleasant side-effects. What's worse, NAT breaks IPSEC, making it difficult to improve security by using authentication and encryption.
The point was that property owners do not have absolute power to exclude others from their property.
Steganography was a problem during World War II. Mail was subject to inspection and censorship. There were concerns about espionage and attempts to evade censorship. Mail was checked for invisible ink and anything else that might be used to hide messages. Some people used steganography to save money. Since there were special subsidized postal rates for mailing newspapers, messages could be sent by using a pin to poke holes in the paper, spelling out the characters of the message. Some soldiers tried to evade the censor so that they could tell their family where they were located. Censors were suspicious of weather reports and other statistical information that might be used to hide messages.
It's a common manufacturing technique for calculators. The factory produces one PC board and puts it in different housings to create multiple models with different features. Sometimes there are jumpers on the PC board to enable/disable features.
Israel is in the middle of a severe budget crunch. That's encouraging the government to look for ways to cut costs.
I believe it is to distinguish between someone saying "I support the People's Liberation Front of Mudville." and sending money or arms to the PLFM.
Property rights are a social convention, whose definition is dependent on the norms of the society. This is especially true for abstract forms of property. Current law is supposed to reward creativity and ingenuity, not the simple application of labor.
Let's see your hypothetical store owner put a sign on the door saying "White Only".
For a current example, many current production cell phones include a camera and audio recorder. With the prevalence of cell phones, rules that treat cameras and audio recorders as unusual devices will need to be changed. I ran into this problem when I was selected for jury duty. A sign at the entrance to the courthouse said that these devices were prohibited. In the jury lounge, it quickly became obvious that most of the jurors were carrying cell phones. I suspect that most of the lawyers were also carrying these devices. If the security personnel had wanted to be hard-asses about it, they could have effectively shut down the courthouse for the day by refusing entry to anyone carrying a cell phone.
In the future, electronic vision correction/enhancement may become common for people with vision problems that are not correctable with conventional lenses. Now the video camera is no longer a toy, it is part of a medical device. A storeowner who tells his customers that medical devices are prohibited is going to be in big trouble, very quickly.
Real-time systems must meet hard, or in some cases soft, timing constraints. Determinism is usually more of a concern than raw speed. A high-level language may be appropriate if it reduces total system costs and development time.
The cable company doesn't have to be the one that provides the equipment. There is an open standard for digital cable. Television sets are already being introduced with integrated digital cable tuners. The cable company supplies a security module that plugs into the tuner.
What I am waiting for is a PVR with an integrated digital cable tuner. The chips are available, someone just has to build it.
Apple can get prices that most vendors can only dream about. At the quantities they buy, everything is negotiable.
Prices on many of the older HPs, like the 15C, 16C and 32SII, have reached ridiculous levels.
You can usually find good deals on the 28C/S, 48S/SX and 48G/GX. If you don't mind algebraic, 39Gs are dirt cheap.
Check out eBay. You can get used and new TI calculators for considerably less than retail price. There are a lot of people who buy a calculator for a course or two and then sell it on eBay.
I wonder if the principal has an "Independent Thought Alarm" button on his desk, as seen in "The Simpsons".
Before digital electronics became practical, many launch vehicles and spacecraft used analog FDM systems for telemetry. Each telemetry parameter is connected to a VCO (voltage controlled oscillator), the VCOs are multiplexed together and used to modulate the transmitter. On the ground, the receiver output is fed into a bank of FM discriminators. The discriminator outputs can be used to drive strip-chart recorders, and fed to an ADC for computer processing. I think they still use it on some price-sensitive applications like weather balloons.
One of my favorite computer architectures is the CDC 6600 PPU (Peripheral Processing Unit), an I/O processor for the CDC 6600. It had 10 complete sets of CPU registers and 10 banks of memory, one for each register set. It would execute one instruction in register set #0, then one instruction in register set #1, then one instruction in register set #2, etc. By continually cycling through the register sets, it behaved like 10 independent processors that could simultaneously execute 10 programs, although at 1/10 the speed of the hardware cycle time. It was a clever way to get 10 independent processors without having all of the hardware that would be needed by the conventional approach.