I've never understood why the IT industry has been so adverse (sic) to Unions?
Because unions usually force collective bargaining and oppose pay for merit. Programmers are mostly individualists and think that they're worth more than the next guy.
Employers don't value employee rights unless there is a viable threat from a large number of employees suddenly stopping all work.
Some do, some don't. Often employee treatment differs from one manager to the next in the same company.
Unions take money from your paycheck to pay their own staff and to (often illegally) siphon money into left-wing political programs. They are a net drain on the economy.
Good points. It would be interesting to see the results of using plastic pipe for circulating hot water heating. It would certainly help keep the water from cooling as it went around the house!
We're not interested in eps_r in silicon when we're talking about signals going "long" distances in an IC. The relevant eps_r is that for silicon dioxide, which is 3.9.
The resistance and capacitance of the wire are what limit the speed through a wire.
Wrong. The propagation speed along a wire is c/sqrt(ue), where u is the relative permeability and e is the relative permittivity. In an IC's SiO2, this is about c/2. If conductor resistance slows this down further, the conductor was made too small or of the wrong material.
Re:GaAs??? GaAs is material of the future...
on
Where's My 10 Ghz PC?
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· Score: 3, Informative
Vitesse had CMOS GaAs as small as 0.35u and had to abandon the technology when smaller geometry silicon caught up in speed with GaAs. The money wasn't there (in 2000) to make a smaller geometry fab. Also, my understanding is that at smaller geometries the advantage for GaAs is reduced. Indium phosphide is another possible technology. The big problem is that a huge heap of money will be needed to develop a high speed, high integration replacement for silicon, and there's no guarantee that it will ever pay off. For the forseeable future, consumer processors will remain silicon.
Magnetic tape is cut from reels at least a foot wide. In principle, any manufacturer of audio tape could assemble a set of rotary knives for an arbitrary width tape. If there's enough money available for a custom run, it can be done.
The green-yellow-green is probably the result of a poorly-designed traffic-sensitive program. The time comes for the low-traffic side to get a green light and the high-traffic side prepares to go red by changing to yellow. The controller then checks for cars in the low-traffic side, finds none, and aborts the green for the low-traffic side, returning green to the high-traffic side.
Although electron guns have improved slowly over the years, they still degrade slowly and they still have a failure rate (filament open-circuits). Also, the phosphors become less efficient and the glass darkens due to xrays.
DTL still had some use in the early 70s in military circuits, where occasionally a logic function available in DTL was not yet available in TTL. DTL had some technical advantage in some situations (I don't remember what it was, perhaps lower power or a slightly different logic threshold?) I've never seen RTL ICs, their disadvantages quickly made them obsolete.
Many processors were left out of the article. (Can't say that's bad, there are so many.) One notable device out of the mainstream was the SMS300, also known as the Signetics 8X300. This was a bipolar micro, running at 3 MHz clock in 1980, but with a high instruction rate. Merge and rotate in a single instruction. Signetics got bought out by Phillips.
Simulation time is a major pain. Separate simulations using different process parameters can be run at the same time on separate machines, if you have enough software licenses.
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Because unions usually force collective bargaining and oppose pay for merit. Programmers are mostly individualists and think that they're worth more than the next guy.
Employers don't value employee rights unless there is a viable threat from a large number of employees suddenly stopping all work.
Some do, some don't. Often employee treatment differs from one manager to the next in the same company.
Unions take money from your paycheck to pay their own staff and to (often illegally) siphon money into left-wing political programs. They are a net drain on the economy.
The lead in monitor glass is an oxide, poorly soluble and not a threat in modern landfills.
In automobile batteries? Get real. There's no suitable replacement available.
Good points. It would be interesting to see the results of using plastic pipe for circulating hot water heating. It would certainly help keep the water from cooling as it went around the house!
We're not interested in eps_r in silicon when we're talking about signals going "long" distances in an IC. The relevant eps_r is that for silicon dioxide, which is 3.9.
Wrong. The propagation speed along a wire is c/sqrt(ue), where u is the relative permeability and e is the relative permittivity. In an IC's SiO2, this is about c/2. If conductor resistance slows this down further, the conductor was made too small or of the wrong material.
Vitesse had CMOS GaAs as small as 0.35u and had to abandon the technology when smaller geometry silicon caught up in speed with GaAs. The money wasn't there (in 2000) to make a smaller geometry fab. Also, my understanding is that at smaller geometries the advantage for GaAs is reduced. Indium phosphide is another possible technology. The big problem is that a huge heap of money will be needed to develop a high speed, high integration replacement for silicon, and there's no guarantee that it will ever pay off. For the forseeable future, consumer processors will remain silicon.
Absolutely correct. The lasers use the Raman effect, so General Mills can manufacture them on their noodle production line.
Magnetic tape is cut from reels at least a foot wide. In principle, any manufacturer of audio tape could assemble a set of rotary knives for an arbitrary width tape. If there's enough money available for a custom run, it can be done.
Laws get changed when technology improves. In the 1950s, restrictions on headlights would make today's non-sealed-beam, steerable headlights illegal.
The green-yellow-green is probably the result of a poorly-designed traffic-sensitive program. The time comes for the low-traffic side to get a green light and the high-traffic side prepares to go red by changing to yellow. The controller then checks for cars in the low-traffic side, finds none, and aborts the green for the low-traffic side, returning green to the high-traffic side.
Although electron guns have improved slowly over the years, they still degrade slowly and they still have a failure rate (filament open-circuits). Also, the phosphors become less efficient and the glass darkens due to xrays.
Try again. 1 HP = 746 watts = 550 ft-lb/sec.. 100 MW = 73.7e6 ft-lb/sec.. That's a lot, but you're off by a factor of 500.
So, finding "lucid" in "elucidate" is too difficult for you? It must be; you can't spell "explanation."
IIRC Multics had an "append" attribute.
The History of Pi by Petr Beckman.
DTL still had some use in the early 70s in military circuits, where occasionally a logic function available in DTL was not yet available in TTL. DTL had some technical advantage in some situations (I don't remember what it was, perhaps lower power or a slightly different logic threshold?) I've never seen RTL ICs, their disadvantages quickly made them obsolete.
Many processors were left out of the article. (Can't say that's bad, there are so many.) One notable device out of the mainstream was the SMS300, also known as the Signetics 8X300. This was a bipolar micro, running at 3 MHz clock in 1980, but with a high instruction rate. Merge and rotate in a single instruction. Signetics got bought out by Phillips.
Such as a compiler?
Strictly and narrowly speaking, atheism is the lack of belief, not the belief of a lack.
Where did dynamic RAM originate? Intel.
A whole-wafer processor would have severe yield problems. At a minimum, the ability to map out bad sections would be necessary.
Modern X86 processors are Harvard architecture, not von Neuman, to the cache. In other words, there are separate data and instruction caches.
I've actually done that for small PCBs: one 14 pin IC and a few discretes.
I've also laid out several PCBs as large as 10 x 10 inches using AutoCAD. Plot on paper, photograph. 1987 through 1991.
Simulation time is a major pain. Separate simulations using different process parameters can be run at the same time on separate machines, if you have enough software licenses.