The reason you ask slashdot is to get the answers that you won't get from rounding up the usual suspects (google, etc.), or to get a good, custom-filtered synopsis of what you would get from other sources (you do a search, find info on PC104 or whatever and then you have to wade through all the sales pitches and personal experiences not relevant to the reason for your interest, big chaff to wheat ratio). When you ask slashdot and give your reason for asking, potential responders can tell better than any search engine whether they have anything worthwhile to contribute and can leave out the non-relevant stuff if they do respond. Of course you get a lot of responses that are nothing but moderator bait as well, but with everything on one page you can get to the good stuff faster than checking out a bunch of links from a search engine.
Are you saying that telco stuff is powered by negative 48 Volts, i.e., positive ground? If so, do you happen to know why they went with that instead of negative ground?
Part of why I ask is that the local telco seems to do the which polarity is the red wire and which is the green wire backwards from most of the rest of the USA, and I'm looking for clues.
It was the possibility of those jackhammers accidentally providing an unplanned entryway into the room that caused me to advise moving everything to the far wall. After all, we live in a world where non-metallic fiber-optic cable magnetically attracts backhoes.
If you can't move, at least try to move the equipment to the wall farthest away and plan for falling ceiling tiles, plaster dust, etc.
Maybe you could temporarily arrange to work and have the equipment on during hours when construction isn't happening.
For a vibration and impact shock wave resistant material to go under the equipment, look for some stuff called Enkasonic. When I last looked into it, it was made by BASF in a facility of theirs somewhere in the western part of North Carolina. Look it up on Google. Good luck.
When I say VESA slot, I'm referring to the black card edge connector (16 bit ISA) and the brown card edge connector as one physical unit designed to peacefully co-exist with legacy expansion cards. Now that I think of it I should include PCI in that list with VESA and EISA, in that as long as the motherboard manufacturer puts both kinds of connectors at any given slot position, it's available for either type of card.
Interestingly enough, the MCA card edge connector seems to have lived on beyond the electronic philosophy that spawned it (now watch someone pop up to announce that it was originally designed for some short lived video game console or something), with a little geographical relocation and, in one case, a color change, as the VESA connector and the PCI connector.
The VESA extension was a more direct route into and out of the 486, which is why it only survived on a very few Pentium boards, because extra circuits had to be added to adapt it to the new processor design. If the 486 had remained on top for another 5 or 10 years, VESA would have been very, very big.
The way I heard it the reason was that IBM would only license the MCA slots to computer makers that also paid them retroactive royalties for all those years that they made stuff with and for 8 and 16 bit ISA slots.
Needless to say, it was the smallest, slowest stampede in history.
At least EISA and VESA slots would also take regular ISA boards (except for that full length card skirt thing).
"...where an American spy plane crashed into a Chinese jet, resulting in the death of a Chinese pilot."
Oh, you mean the time when a U.S. pilot endangered himself and 23 other crew members by diverting from his assigned mission to hit a faster, more maneuverable jet with his big, lumbering propellor driven airplane?
In other words, when we asaulted the Chinese fist with our nose.
Uninterruptable power supplies have a battery and circuitry to convert that battery's current to 120V AC. Instead of feeding that battery from wall socket AC that's been stepped down, rectified and filtered (not necessarily in that order), just feed the battery from whatever source of DC you were planning on using (solar, etc.) Then you can just plug your computer and monitor into the AC outlets of the UPS.
Of course, you'll need to be able to feed that UPS battery with a slightly higher DC Voltage than the battery's own voltage to keep it trickle charged, and that source of DC will have to be able to supply enough current to drive the computer and monitor and keep the battery trickle-charged, and it's probably at this point that you'll realize distributing power via 120 Volt AC around the average home and letting each device convert it according to that device's needs is much more practical.
Another possibility is to rebuild your computer's power supply, eliminating the AC side of it and replacing the isolation/step down/switching transformer and associated switching transistors with something that's the same on the secondary side but uses lower voltage-higher current transistors and fewer windings of heavier wire on the primary side, unless you can put enough solar cells in series to achieve about 170 to 200 Volts DC.
You may have realized by now that I'm trying to point out that although what you want is possible and an interesting thought exercise, it suffers from a pretty high lack of practicality.
Using DC is going to almost invariably mean lower voltages than the wall socket, which means higher amperages for the same wattage, which means thicker cables keeping the current source and the computer near each other or even thicker cables to prevent voltage drop.
What I meant wasn't that it was legal for only Amtrak and no one else to carry passengers, but that it wasn't legal for Amtrak to carry anything except passengers, i.e, no freight or mail, and that it was the lack of access to the revenues that freight and mail would provide that keeps Amtrak in the red. Like I said, it was something I heard on TV the other day.
Does anyone know if Trailways and/or Greyhound carry packages anymore?
What does integrity have to do with not using the internet (or the Pony Express, for that matter) for something in which one (referring to those "some people") has little or no interest?
I started to post about then/than and that would have meant having to point out even "than" isn't used with "different", "from" is, and that it's "interests", not "interest", and then I spotted "there religion" which should have been "their religion", and decided to skip it and just say "nice post" (referring to the ideas expressed, not the minor mistakes in the expressing of them).
Besides, any post pointing out that many errors of grammar and usage is bound to contain at least one of its own (and probably misspelled at that), which of course would be blindingly obvious the picosecond after I clicked "Submit".
Ever notice how those same computer gods like to wait until you blow all your current disposable income on a new part for your computer before they break one of the old ones?
Sounds like you're talking about room air conditioners in your real world example. I learned the hard way that the condensation actually takes place in the "indoor" half (where the air gets chilled)and has to be properly channeled, through gravity and/or suction created by the "outdoor" half of the fan, through the separating wall to the "outdoor" half (where the heat removed from the chilled inside air is released into the great out of doors, which, I suspect, is why summers seem hotter than they did years ago-more air conditioned spaces=more heat pumped into the outdoors).
That's the problem, there's a law, or a ruling with the force of law, that's says that they can't wait, they have to do it now, just like everybody else with a license to broadcast television over the airwaves. Which means that everybody has to be an early adopter and buy when the demand is the highest it will ever be.
Saw something the other day on TV about how Amtrak can only carry passengers legally, which means that all the real money being made by railroads is being made by the privately owned ones that can carry mail and freight.
Slashdot Mirror
Or in any other place where there's enough demand for computer networks to justify his plane ticket.
Sheesh!
The reason you ask slashdot is to get the answers that you won't get from rounding up the usual suspects (google, etc.), or to get a good, custom-filtered synopsis of what you would get from other sources (you do a search, find info on PC104 or whatever and then you have to wade through all the sales pitches and personal experiences not relevant to the reason for your interest, big chaff to wheat ratio). When you ask slashdot and give your reason for asking, potential responders can tell better than any search engine whether they have anything worthwhile to contribute and can leave out the non-relevant stuff if they do respond. Of course you get a lot of responses that are nothing but moderator bait as well, but with everything on one page you can get to the good stuff faster than checking out a bunch of links from a search engine.
Part of why I ask is that the local telco seems to do the which polarity is the red wire and which is the green wire backwards from most of the rest of the USA, and I'm looking for clues.
It was the possibility of those jackhammers accidentally providing an unplanned entryway into the room that caused me to advise moving everything to the far wall. After all, we live in a world where non-metallic fiber-optic cable magnetically attracts backhoes.
Is "Plural" the latest name change for some telcom or telco or did you mean "singular"?
Maybe you could temporarily arrange to work and have the equipment on during hours when construction isn't happening.
For a vibration and impact shock wave resistant material to go under the equipment, look for some stuff called Enkasonic. When I last looked into it, it was made by BASF in a facility of theirs somewhere in the western part of North Carolina. Look it up on Google. Good luck.
Interestingly enough, the MCA card edge connector seems to have lived on beyond the electronic philosophy that spawned it (now watch someone pop up to announce that it was originally designed for some short lived video game console or something), with a little geographical relocation and, in one case, a color change, as the VESA connector and the PCI connector.
The VESA extension was a more direct route into and out of the 486, which is why it only survived on a very few Pentium boards, because extra circuits had to be added to adapt it to the new processor design. If the 486 had remained on top for another 5 or 10 years, VESA would have been very, very big.
Are you sure that you don't mean introduce standards killers every few years?
Needless to say, it was the smallest, slowest stampede in history.
At least EISA and VESA slots would also take regular ISA boards (except for that full length card skirt thing).
Oh, you mean the time when a U.S. pilot endangered himself and 23 other crew members by diverting from his assigned mission to hit a faster, more maneuverable jet with his big, lumbering propellor driven airplane?
In other words, when we asaulted the Chinese fist with our nose.
Of course, you'll need to be able to feed that UPS battery with a slightly higher DC Voltage than the battery's own voltage to keep it trickle charged, and that source of DC will have to be able to supply enough current to drive the computer and monitor and keep the battery trickle-charged, and it's probably at this point that you'll realize distributing power via 120 Volt AC around the average home and letting each device convert it according to that device's needs is much more practical.
Another possibility is to rebuild your computer's power supply, eliminating the AC side of it and replacing the isolation/step down/switching transformer and associated switching transistors with something that's the same on the secondary side but uses lower voltage-higher current transistors and fewer windings of heavier wire on the primary side, unless you can put enough solar cells in series to achieve about 170 to 200 Volts DC.
You may have realized by now that I'm trying to point out that although what you want is possible and an interesting thought exercise, it suffers from a pretty high lack of practicality.
Using DC is going to almost invariably mean lower voltages than the wall socket, which means higher amperages for the same wattage, which means thicker cables keeping the current source and the computer near each other or even thicker cables to prevent voltage drop.
Which pilot, which plane?
One of the propellors was a spy?
Why else do you think libraries have internet terminals?
Glad I'm not flying anywhere near there either.
Does anyone know if Trailways and/or Greyhound carry packages anymore?
What does integrity have to do with not using the internet (or the Pony Express, for that matter) for something in which one (referring to those "some people") has little or no interest?
http://www.theregister.co.uk/content/archive/15881 .html
Besides, any post pointing out that many errors of grammar and usage is bound to contain at least one of its own (and probably misspelled at that), which of course would be blindingly obvious the picosecond after I clicked "Submit".
Nice post.
Ever notice how those same computer gods like to wait until you blow all your current disposable income on a new part for your computer before they break one of the old ones?
Sounds like you're talking about room air conditioners in your real world example. I learned the hard way that the condensation actually takes place in the "indoor" half (where the air gets chilled)and has to be properly channeled, through gravity and/or suction created by the "outdoor" half of the fan, through the separating wall to the "outdoor" half (where the heat removed from the chilled inside air is released into the great out of doors, which, I suspect, is why summers seem hotter than they did years ago-more air conditioned spaces=more heat pumped into the outdoors).
What they *should* teach in school is that "than" and "then" are not homophones. If you pronounce them properly they do not sound the same.
That's the problem, there's a law, or a ruling with the force of law, that's says that they can't wait, they have to do it now, just like everybody else with a license to broadcast television over the airwaves. Which means that everybody has to be an early adopter and buy when the demand is the highest it will ever be.
...get an educasian!
Saw something the other day on TV about how Amtrak can only carry passengers legally, which means that all the real money being made by railroads is being made by the privately owned ones that can carry mail and freight.