An ALU built up of discrete electronic compoents over many circuit boards, such as used in 1st and 2nd generation computers, and sometimes 3rd generation.
Digico was formed in 1965 by two electronic engineers who had left ICL (aka ICT). They were Keith Trickett and Avo Hiiemae. Digico was based in Letchworth until relocating to Stevenage in 1973. In 1969 the former MP Eric Lubbock was made chairman of the company. In 1966 they had Read more…
LEO stands for Lyons Electronic Office. The LEO I computer was the first computer used for commercial business applications in 1954. It was a 1st generation computer using Valves. Two models later and in 1961 the LEO III was introduced. The LEO III was a 2nd generation computer, using Solid Read more…
Sadly, we haven’t got a complete Benedix G-15 computer (donations welcome!). We have however some small parts of the machine, including two logic circuits and the memory drum. The computer was built from 1956. Unlike almost every other computer ever built, the G-15 used the memory drum as a delay-line Read more…
No, we don’t really have an Atlas computer. We do however have one of the last print-outs the Atlas computer at Manchester University ever did. This print-out was one of several copies printed out right before the power switch was turned off for the last time on the 30th September Read more…
The Electrologica X1 is a transistorised computer designed in the Netherlands in 1958. Only around 30 machines were built. It was also one of the first European computers to use Interrupts. Bram J Loopstra and Carel S. Scholtenare are widely regarded as the Designers of the Electrologica X1 Computer. These Read more…
Sadly we don’t have the whole machine, just this logic card and the programming manual. The Pegasus computer was in production from 1956. More can be seen on Wikipedia.
The English Electric Deuce is likely to be the oldest computer we have in the museum. Unfortunetly what few parts we have are in many pieces. It is believed to have been built in 1956, as that is the date of Eric Richard’s programming book, who used to work on Read more…
The worlds first commercially available 16-bit microcomputer, the DDP-116 was introduced in 1965 by CCC: Computer Control Company Inc. They were taken over by Honeywell in 1966. Only 200 DDP-116 computers were ever made. They are 2nd generation machines, using only discrete electronic components. No IC Chips. Slot in cards Read more…
In 1966 HP though they should try this computer game. They formed the Cupertino Division and developed the 2116A. Jumping in at the deep end with a 16-bit computer, it turned out to be pretty good for the price. The HP 2116c was introduced in 1970, and was an upgraded Read more…
This IBM 1620 computer dates to March 1961. It was used to provide Education and research in the field of computer science, we believe it was used in the Eindhoven University of Technology. The IBM 1620 was first introduced in 1959, a second generation computer, it has transistorised circuitry. The Read more…