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| True analog scopes |
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| Njk:
--- Quote from: tggzzz on December 19, 2022, 04:29:59 pm ---Transputer (with a sprinkling of Sun's Niagara T chips) and more modern hardware, Occam/CSP, more pragmatism, and carefully limited objectives. It is hard realtime embedded, not general purpose. CSP/Occam concepts/constructs are making their way into modern languages, e.g. Rust and Go. --- End quote --- Interesting. I've a book Transputer Applications, edited by Gordon Harp from Royal Signals and Radar Establishment. It was published in 1989. That time, there was some hype about that. Transputers, Occam2, TDS, etc. I was thinking it's long time over |
| tggzzz:
--- Quote from: Njk on December 19, 2022, 05:09:16 pm --- --- Quote from: tggzzz on December 19, 2022, 04:29:59 pm ---Transputer (with a sprinkling of Sun's Niagara T chips) and more modern hardware, Occam/CSP, more pragmatism, and carefully limited objectives. It is hard realtime embedded, not general purpose. CSP/Occam concepts/constructs are making their way into modern languages, e.g. Rust and Go. --- End quote --- Interesting. I've a book Transputer Applications, edited by Gordon Harp from Royal Signals and Radar Establishment. It was published in 1989. That time, there was some hype about that. Transputers, Occam2, TDS, etc. I was thinking it's long time over --- End quote --- The concepts have kept reappearing, if you know what you are looking for. Some have appeared in Texas Instruments DSP chips, some in libraries for mainstream languages, etc. Now that single cores have hit a performance barrier, it is no longer to wait 18 months for performance issues to "disappear". Clearly the future is based around multicore processors, multiple threads, distributed memory, and distributed computing. Unfortunately the languages and concepts that implicitly presume single core computation haven't kept up. Yes, they battle valiantly, adding sticking plaster here and there, and will be around as long a COBOL. But new fundamental concepts are necessary. The XMOS hardware/software ecosystem has tackled those limitatations and problems head-on without compromise amd without being unnecessarily hobbled by backward compatibility. They aren't sufficient for the future: we need more radical advances. But they do indicate the benefits that can be gained. |
| tautech:
--- Quote from: tggzzz on December 19, 2022, 03:15:36 pm ---Any working scope is better than no scope. --- End quote --- It is however when you need to invest in a working scope one need consider if what's available is a worthy investment. Old stuff is just that, old and nearing the end of that bell curve of reliability where the novice especially isn't well served by some unreliable junk that needs a duplicate to help fix it. Often that novice, a new Uni student is more focussed on projects and studies rather than need fix some old boat anchor. Here in NZ there is not the resources of old scopes in working condition and why would a budding engineering student even want to use one when at Uni they are to use better, much better. --- Quote ---Those that say something to the effect that "only the latest tool should be considered" are doing budding engineers a disservice. --- End quote --- Those that haven't experienced modern equipment are excused for their ignorance as no longer is a scope just a scope but a LA, FRA, SA, Protocol analyser, Logger, FG and a remote capture instrument and all in a single small box at a single new instrument cost. One investment = most of an analysis lab. How can even the experienced engineer not be seduced by all this capability or is it they are still living in another century ? Maybe all this technology in a single box blinds them. :-// |
| james_s:
--- Quote from: tautech on December 19, 2022, 07:51:56 pm ---Those that haven't experienced modern equipment are excused for their ignorance as no longer is a scope just a scope but a LA, FRA, SA, Protocol analyser, Logger, FG and a remote capture instrument and all in a single small box at a single new instrument cost. One investment = most of an analysis lab. How can even the experienced engineer not be seduced by all this capability or is it they are still living in another century ? Maybe all this technology in a single box blinds them. :-// --- End quote --- I prefer single purpose standalone instruments in almost every case. I have yet to be impressed with the experience of "Swiss army knife" style test equipment, too often it tries to do everything and ends up doing nothing particularly well. |
| tautech:
--- Quote from: james_s on December 19, 2022, 08:23:44 pm --- --- Quote from: tautech on December 19, 2022, 07:51:56 pm ---Those that haven't experienced modern equipment are excused for their ignorance as no longer is a scope just a scope but a LA, FRA, SA, Protocol analyser, Logger, FG and a remote capture instrument and all in a single small box at a single new instrument cost. One investment = most of an analysis lab. How can even the experienced engineer not be seduced by all this capability or is it they are still living in another century ? Maybe all this technology in a single box blinds them. :-// --- End quote --- I prefer single purpose standalone instruments in almost every case. I have yet to be impressed with the experience of "Swiss army knife" style test equipment, too often it tries to do everything and ends up doing nothing particularly well. --- End quote --- Agreed, especially when just 10 years back this multi capability was in its infancy and in those days I too thought a scope was just a scope and even instruments of that time were quite basic compared with what you can get for the same price today. Particularly good performance implies an instrument was designed for specific tasks however the modern instrument with multiple capability is a compromise in design but still does tasks adequately well. Pick your poison and let that define your budget. |
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