Imperial College Computing Engine

ICCE I and ICCE II were digital computers built at the Imperial College Department of Mathematics in the post-war period.

ICCE I
The first Imperial College Computing Engine, ICCE I, was constructed by Sidney Michaelson, Tony Brooker and Keith Tocher in the Department of Mathematics at Imperial College London in the late 1940s and early 1950s. It was a relay based machine which gave relatively slow but highly reliable service. Its current whereabouts are unknown.

ICCE II
ICCE II was constructed by Sidney Michaelson, Keith Tocher and Manny Lehman in the early 1950s. This valve based machine was never completed. ICCE II was taken by Keith Tocher to British Steel. Its current whereabouts are unknown.

Influence on other machines
ICCE I and II influenced the design of SABRAC, the computer constructed in Israel by The Israeli MoD Scientific Department.

Project termination
In 1956/7, the project was forcibly terminated. Staff dispersed. In 1951 Tony Brooker had left to join the Computing Machine Laboratory at the University of Manchester. Keith Tocher took ICCE II and went to work at British Steel, Sidney Michaelson went to the University of Edinburgh and founded the Computer Unit which subsequently became the Department of Computer Science, now the school of informatics. Manny Lehman ultimately joined the Israeli MoD Scientific Department which subsequently became Rafael.