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DMIOM:
Well Trev, that certainly brings back memories - I had just dredged Nascom from my memory and then scrolled down to your message!
A Nascom 1 was built at Uni in I think it was Autumn 1978 - I think it was nominally under the auspices of G3OUL, our RadSoc.
Because of that, I also recall getting into bother - we were being taught 8080 assembler but I was using Nascom out-of-class and there were some instructions where the mnemonics were different for the same operation (for copyright reasons?) and I used the Zilog instead of the Intel ones in a test or exam (was it LD vs MV?).
My first standalone venture was an 8008 with 16 bytes - assembled from quad TTL latches!
and talking of memory - the first mini I had much to do with was a CTL "Mod 1". It had 120k of memory and would support 40+ concurrent users editting, compiling & test running Algol programs. Twas an interesting beast to start - toggle in the bootstrap loader from the front-panel switches, then read in the startup paper tape - then console & discs were active.
Then on to programming 8048 using the blue-cased Intel MDS ....
Nostalgia's definitely not what it used to be ! :beer:
Dave
AdeV:
Hmmm....
Would either of you guys (or anyone who's reading/lurking - PM me of if you don't want to break cover) be up to diagnosing a fault/faults on an S-100 BUS based computer?
I have a fairly elderly Micromat PCB drilling/routing machine, the control computer is, as far as I can tell, S-100 based, and is exhibiting bit-rot behavior. My electronics skills just aren't up to diagnosing the fault, although I probably have most of the kit you'd need to do the job (multimeter, oscilloscope and HP logic analyser).
There would be a £ reward for fixing it...
(the alternative is to dump the old computer & drive the main cab with a modern PC... but what's the fun of that?)
trevoratxtal:
--- Quote from: DMIOM on February 16, 2013, 06:21:12 AM ---Well Trev, that certainly brings back memories - I had just dredged Nascom from my memory and then scrolled down to your message!
A Nascom 1 was built at Uni in I think it was Autumn 1978 - I think it was nominally under the auspices of G3OUL, our RadSoc.
Because of that, I also recall getting into bother - we were being taught 8080 assembler but I was using Nascom out-of-class and there were some instructions where the mnemonics were different for the same operation (for copyright reasons?) and I used the Zilog instead of the Intel ones in a test or exam (was it LD vs MV?).
My first standalone venture was an 8008 with 16 bytes - assembled from quad TTL latches!
and talking of memory - the first mini I had much to do with was a CTL "Mod 1". It had 120k of memory and would support 40+ concurrent users editting, compiling & test running Algol programs. Twas an interesting beast to start - toggle in the bootstrap loader from the front-panel switches, then read in the startup paper tape - then console & discs were active.
Then on to programming 8048 using the blue-cased Intel MDS ....
Nostalgia's definitely not what it used to be ! :beer:
Dave
--- End quote ---
Well Dave and Adev that brings back memory's.
I was the owner of Crystal electronics and Md of Chrystal Research.
Retired now.
Contact me direct Email I can phone you for free (UK) if you would like to chat.
Adev contact me direct I will try to talk you through a fix
Trev
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