Talk:List of vacuum tube computers
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I worked thru this list and added "Category:Vacuum tube computers" to all entries except in a few cases where the computer line also included transistorized systems and those which already had "Category:IBM vacuum tube computers". I also added "see also" pointing to this list. Peter Flass (talk) 13:29, 12 January 2013 (UTC)
- AVIDAC (Argonne National Laboratory) was used by E. Fermi in 1951 for calculating orbits in the accelerator that he was designing. (Jalexbnbl (talk) 23:08, 9 December 2013 (UTC))
- ORACLE (Oak Ridge National Laboratory) was in operation in September 1953 (personal observation). Jalexbnbl (talk) 23:15, 9 December 2013 (UTC)
Re: Colossus and programmability
Wikipedia page states that Colossus was "the world's first electronic digital computer that was at all programmable". and mentions:
"It compared two data streams, counting a statistic based on a programmable Boolean function."
"Both models were programmable using switches and plug panels in a way the Robinsons had not been."
Colossus machines were indeed programmable - but only hardware programmable in very limited ways.
They were dedicated code-breaking machines built for a specific job and were in no way either general purpose or software programmable computers in the way of post-war machines such as the Manchester Mark 1, Cambridge EDSAC, and others.
Claim to be the first computer with interrupts in 1956 is contradicted by http://www.cl.cam.ac.uk/events/EDSAC99/reminiscences/#EDSAC%201%20construction
Donald Willis (Research Assistant 1948-50 & 1952-55)
"Stan Gill wrote the subroutines which interrupted the processor when data arrived from the [tape] reading head"
It could multiply and divide and the processing for each punched card was defined using a 20-60 step plugboard ? It used about 1200 valves and its in Category:IBM vacuum tube computers - Rod57 (talk) 07:27, 9 January 2016 (UTC)
- It is hard to say - I'm pretty sure that it was very limited in the programming - couldn't run a general program. Bubba73 You talkin' to me? 02:53, 10 January 2016 (UTC)
- It seems to me to be an automated calculator. It could read cards in, take those numbers and do some basic arithmetic operations and print the results out on a card, then go on to the next card. It looks like it could not store that result internally and did not have looping or branching. However, if you want to include it, I won't object. Bubba73 You talkin' to me? 01:39, 15 January 2016 (UTC)
Should we add month to date
The article says "Oldest surviving first-generation electronic computer — unrestored and non-functional." ENIAC exists, but not all together. The Smithsonian has part of it (it was enough to operate), the Moore School has part of it, Aberdeen has a function table, and it is said that part of it is at (I think) the University of Michigan. Bubba73 You talkin' to me? 01:34, 22 December 2017 (UTC)