I've used it in two commercial systems. Both were VME chassis control systems with several single board computers. The x86 boards each had 8 MB nonvolatile RAM. Worked great. The whole "embedded" label is pretty nebulous, but for the type of system you're talking about, I agree with you. In those cases you would usually roll your own OS, if you use one at all.
When did that episode first air? I thought I remembered seeing it right around the time I graduated HS (1990), but the last decade _has_ been kind of a blur.
I think that might be more of a European thing. In the U.S. most doctorates are of the Ph.D. variety, except for education. Anybody know of U.S. schools which offer a D.Sc.?
But part of the larger issue is why they need to collect royalties for the ability to play something that we have already purchased. How many times do we have to pay to play that DVD?
Is that a fear of being pigeonholed or a dislike of communicating with Linux users? I don't understand choosing not to use something based on the behavior of others. For example, I think most people who have cellphones are pretty disrespectful of others -- have their ringer too loud, talk too loud, don't know when to turn the damn thing off -- but that didn't keep me from getting one for myself -- and using it how I feel is appropriate.
I'm HIGHLY doubtful, to say the least, and the article does nothing to give any credence to the claims. A quick search of Compendex yields this article by the research report authors. Our library doesn't carry the publication so I can't check it out. If anybody else has access, I'd really be interested in a review. What is Applied Microwave and Wireless? Is it peer-reviewed?
Author(s):
Koukourlis, C.S.
Pliatsikas, J.C.
Sahalos, J.N.
Walker, H.R.
Title:
Spectrally efficient biphase modulation FOUND IN:
Applied Microwave and Wireless v 10 n 4 May 1998. p 74, 76-81
Publ. year:
1998
Abstract:
Phase modulated biphase codes which are transmitted single sideband-suppressed carrier at RF frequencies require much less bandwidth without any significant increase in circuit complexity. These codes have an important advantage over other bandwidth efficient modulation methods in that they do not lose bit energy with increasing bandwidth efficiency (compression). Actual measurements confirm this characteristic. 10 Refs.
Historians, of any sort, don't usually just collect and catalog information. They interpret the facts, put them in context, and provide [hopefully] interesting anectodal information too. If a web site provides you with that kind of insight--about any subject--somebody with the appropriate expertise would have had to produce it.
Yeah, understanding everything in the world is now only a click away from a page of Google search results.
Actually, if they have a WAP enabled interface I'll go buy one of these things. (ok, probably not.) Recent example, my friends and I are out a bar and an episode of SNL is on that seems pretty funny. But we can't hear it and really don't want to be watching it in a setting where we're supposed to be hanging out and enjoying each other's company. Now, if I could use my "fancy" ($69) WAP-phone to record the show and forget about it, I think it would be useful.
Who tries to browse on their WAP phone anyway? It's just for quick info, like movie times, stock prices, or the occasional./ headlines. I personally don't see how hires, Flash(y), graphics-intense web pages are useful. I just want some info -- fast.
Well, if he has any sense at all he'll at least use a gyroscope-based control system (with redundancy) for controlling the thrust of each rocket. It really shouldn't be too difficult using some classical control techniques. Gravity, along with the rocket's inertia, should provide dampening so the whole thing doesn't oscillate like crazy.
Some other guy had an "effect" that limited transmission rates to 33.6 over standard phone lines.
Are you talking about Shannon's theorem? I wouldn't exactly place that in the same category as Moore's Law. Incidentally, Shannon's Theorem is NOT violated by > 33.6 kbps modems.
Which ones would you use on an embedded system, though? I can see your point for set-tops and net type devices but I've built custom defense-oriented embedded systems using Fltk that would have benefited from not needing X, which Microwindows should take care of. No Qt app would have helped there. You'll have to remind me about Fltk. Are you talking the issue with Bill Spitzak(?). Yeah, it was close, but his company made the right decision (TM) and we all benefited. Or are you talking about something else. It's just another choice--one I find particularly suitable for custom, single app type systems--and it's really easy to use. Regards.
Microwindows is on it's way to supporting Fltk, IIRC. Fltk is really lightweight and supports X and Windows with source compatibility. In that case you should be able to develop on the desktop for an embedded target just like Qt is proposing.
Not that this helps much directly, but there was an article about SL and its merits a few years back in IEEE Spectrum. I think it was going to take a few years of successful launches to amortize the costs. After that I believe the cost to launch was comparable or cheaper.
Like I said, I read a few years ago so I could be totally off.
I've been to the Sea Launch facility and have spent some time on the command vessle. It's pretty incredible to see in person, especially the launch platform--the pontoons are enormous. I was there integrating an optical tracking system used to track/film the launches.
Anyway... I'm fairly certain that the Russian built rockets are part of the Sea Launch "package". In that case, it really was a Sea Launch failure.
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I've used it in two commercial systems. Both were VME chassis control systems with several single board computers. The x86 boards each had 8 MB nonvolatile RAM. Worked great. The whole "embedded" label is pretty nebulous, but for the type of system you're talking about, I agree with you. In those cases you would usually roll your own OS, if you use one at all.
When did that episode first air? I thought I remembered seeing it right around the time I graduated HS (1990), but the last decade _has_ been kind of a blur.
I think that might be more of a European thing. In the U.S. most doctorates are of the Ph.D. variety, except for education. Anybody know of U.S. schools which offer a D.Sc.?
Yeah. I'll bring the KoolAid. Now, where's that comet?
But part of the larger issue is why they need to collect royalties for the ability to play something that we have already purchased. How many times do we have to pay to play that DVD?
He was asking them to sign up for PayPal with him as the referer.
Is that a fear of being pigeonholed or a dislike of communicating with Linux users? I don't understand choosing not to use something based on the behavior of others. For example, I think most people who have cellphones are pretty disrespectful of others -- have their ringer too loud, talk too loud, don't know when to turn the damn thing off -- but that didn't keep me from getting one for myself -- and using it how I feel is appropriate.
I'm HIGHLY doubtful, to say the least, and the article does nothing to give any credence to the claims. A quick search of Compendex yields this article by the research report authors. Our library doesn't carry the publication so I can't check it out. If anybody else has access, I'd really be interested in a review. What is Applied Microwave and Wireless? Is it peer-reviewed?
Author(s):
Koukourlis, C.S.
Pliatsikas, J.C.
Sahalos, J.N.
Walker, H.R.
Title:
Spectrally efficient biphase modulation FOUND IN:
Applied Microwave and Wireless v 10 n 4 May 1998. p 74, 76-81
Publ. year:
1998
Abstract:
Phase modulated biphase codes which are transmitted single sideband-suppressed carrier at RF frequencies require much less bandwidth without any significant increase in circuit complexity. These codes have an important advantage over other bandwidth efficient modulation methods in that they do not lose bit energy with increasing bandwidth efficiency (compression). Actual measurements confirm this characteristic. 10 Refs.
Historians, of any sort, don't usually just collect and catalog information. They interpret the facts, put them in context, and provide [hopefully] interesting anectodal information too. If a web site provides you with that kind of insight--about any subject--somebody with the appropriate expertise would have had to produce it.
Yeah, understanding everything in the world is now only a click away from a page of Google search results.
Actually, if they have a WAP enabled interface I'll go buy one of these things. (ok, probably not.) Recent example, my friends and I are out a bar and an episode of SNL is on that seems pretty funny. But we can't hear it and really don't want to be watching it in a setting where we're supposed to be hanging out and enjoying each other's company. Now, if I could use my "fancy" ($69) WAP-phone to record the show and forget about it, I think it would be useful.
./ headlines. I personally don't see how hires, Flash(y), graphics-intense web pages are useful. I just want some info -- fast.
Who tries to browse on their WAP phone anyway? It's just for quick info, like movie times, stock prices, or the occasional
Well, if he has any sense at all he'll at least use a gyroscope-based control system (with redundancy) for controlling the thrust of each rocket. It really shouldn't be too difficult using some classical control techniques. Gravity, along with the rocket's inertia, should provide dampening so the whole thing doesn't oscillate like crazy.
You can certainly pay me the $20k or so never to own or drive a Camaro again, if you wish.
Some other guy had an "effect" that limited transmission rates to 33.6 over standard phone lines.
Are you talking about Shannon's theorem? I wouldn't exactly place that in the same category as Moore's Law. Incidentally, Shannon's Theorem is NOT violated by > 33.6 kbps modems.
Which ones would you use on an embedded system, though? I can see your point for set-tops and net type devices but I've built custom defense-oriented embedded systems using Fltk that would have benefited from not needing X, which Microwindows should take care of. No Qt app would have helped there. You'll have to remind me about Fltk. Are you talking the issue with Bill Spitzak(?). Yeah, it was close, but his company made the right decision (TM) and we all benefited. Or are you talking about something else. It's just another choice--one I find particularly suitable for custom, single app type systems--and it's really easy to use. Regards.
bah, errors.
Anyway, Fltk is LGPL'd too, so I would think that embedded leaning companies would be quick to jump on it, all OSS issues aside.
Microwindows is on it's way to supporting Fltk, IIRC. Fltk is really lightweight and supports X and Windows with source compatibility. In that case you should be able to develop on the desktop for an embedded target just like Qt is proposing.
Not that this helps much directly, but there was an article about SL and its merits a few years back in IEEE Spectrum. I think it was going to take a few years of successful launches to amortize the costs. After that I believe the cost to launch was comparable or cheaper.
Like I said, I read a few years ago so I could be totally off.
I've been to the Sea Launch facility and have spent some time on the command vessle. It's pretty incredible to see in person, especially the launch platform--the pontoons are enormous. I was there integrating an optical tracking system used to track/film the launches.
Anyway... I'm fairly certain that the Russian built rockets are part of the Sea Launch "package". In that case, it really was a Sea Launch failure.