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Questions tagged [identify-this-computer]

Requests to identify a historical computer. Whole, self-contained machines only; use [identify-this-card] instead for extension cards.

7 votes
1 answer
475 views

identification of old computer used at CERN library

I am trying to identify an old computer, but I cannot find anything like it. There are no labels to indicate the manufacturer. It is likely from the 70's or 80's, and was the first computer to be used ...
a20's user avatar
  • 321
12 votes
5 answers
6k views

Did any CPUs have a special instruction for multiplying or dividing by ten?

I recall reading about a CPU from the 90s which had, in addition to normal integer multiply and divide instructions, also had a special set of instructions for multiplying and dividing by ten. Does ...
billpg's user avatar
  • 273
3 votes
0 answers
336 views

Two Unknown Sony Corp Boards - Please identify

There are two Boards: The first one has Chips with the name "Sony 501 0C 185", "Sony 502 0J 043", "Sony 504 1B 002 504-3", "Sony 509 01 017 509-00", "Sony ...
I Ate Minecraft's user avatar
4 votes
1 answer
440 views

What was this Desktop Programmable Calculator circa 1975

In 1975, my high school computer lab (Maryland USA) had 3 computing devices/terminals. One was a Teletype connected to an offsite mainframe via an acoustical modem. Our class assignments were on this. ...
Mattman944's user avatar
8 votes
1 answer
922 views

What computer is this, a clone of a ZX Spectrum?

Recently I stumbled over this article with an interesting teaser image. It shows some home computer, presumably of the eighties. Unfortunately the image is too blurry to read the keywords on the keys: ...
the busybee's user avatar
  • 1,253
19 votes
3 answers
3k views

Denys Fisher, of Spirograph fame, using a computer late 1976, early 1977

Denys Fisher, the creator of Spirograph, sold his company, bought an estate in Scotland and started working on his next creations, or at least so is narrated in a BBC's documentary, broadcast as part ...
gboffi's user avatar
  • 313
7 votes
1 answer
567 views

What is the likely function of these circuit boards?

(I've edited this question to include a second board - the seller told me he had two of the same, but having received the photo of the second board it's clear to me that they're different). I am in ...
harlandski's user avatar
  • 2,963
21 votes
1 answer
3k views

Identify these old accounting machines

My mom is an accountant and when I was a child I remember that she had at her work some odd accounting machines. I wish to identify what those were, but unfortunately the bits and pieces she remembers ...
Vilx-'s user avatar
  • 1,825
29 votes
3 answers
5k views

Was there a keyboard layout starting with "TBSY"?

Watching an episode of Murder, She Wrote (7x12 "Suspicion of Murder") and, at one point, a character picks up a typewriter and throws it through a window. However, said keyboard has the ...
jimbobmcgee's user avatar
10 votes
1 answer
775 views

What is the mainframe in this image in Ireland?

Someone recently posted this image of his gran (on the right). Mainframes were before my era, can anyone positively identify the model? I don't see a console in the image, which is where I would ...
Maury Markowitz's user avatar
4 votes
1 answer
317 views

What series of AS/400 is the 9406 F2?

I am considering the acquisition of an old IBM AS/400 midrange computer. The provider has stated the model is "9406 F2". I have dived into the AS/400 information provided by IBM in their own ...
Borg Drone's user avatar
5 votes
2 answers
559 views

The laptops in the Turkish movie Recep İvedik 3 (2009)

I watched Recep İvedik 3 as a kid and it had a story about laptops. In Clip 1, Recep broke Zeynep's laptop trying to kill a fly. In Clip 2, he tried to buy a laptop from a Teknosa store but he didn't ...
Delta Oscar Uniform's user avatar
20 votes
4 answers
6k views

Does any computer resemble the model taught in UK secondary education?

In UK secondary education, there's a model called the fetch-execute cycle, which describes how computers work. (See: Isaac CS; Bitesize GCSE, Higher; Teach CS.) As I understand it: The processor has ...
wizzwizz4's user avatar
  • 18.7k
7 votes
1 answer
736 views

What was the small (cheap) atari-2600 compatible personal computer (not legal) called, that you could program 2600 games, in the 80's?

What was the small (cheap?) Atari-2600 compatible personal computer (not legal?) called, that you could program games for the 2600, in the 80's? I assume people would try and sneak it through the ...
dntknw's user avatar
  • 127
8 votes
1 answer
418 views

What was a MicroAce?

I am familiar with the original ZX80 and its "cousin", the Jupiter Ace, a similarly specc'ed machine but running Forth rather than BASIC. However, a colleague at work stated that there had ...
paxdiablo's user avatar
  • 4,917

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