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

Computing engines

ICCE I

The first Imperial College Computing Engine, ICCE I, was constructed by

Sidney Michaelson Sidney Michaelson (5 December 1925 – 21 February 1991) was Scotland's first professor of Computer Science. He was joint founder of the Institute of Mathematics and its Applications. As an author he is remembered for his analysis of the Bible. Li ...

Tony Brooker Ralph Anthony Brooker (22 September 1925 – 20 November 2019), was a British computer scientist known for developing the Mark 1 Autocode. He was educated at Emanuel School and graduated in Mathematics from Imperial College in 1945 and re ...

and Keith Tocher in th
Department of Mathematics
at

Imperial College Imperial College London, also known as Imperial, is a public research university in London, England. Its history began with Prince Albert, husband of Queen Victoria, who envisioned a cultural district in South Kensington that included museums ...

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. ICCE1_Artihmetic_Unit

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.Cunningham RJ, Computing, in A Centenary History of the City & Guilds College, 1885 - 1985, ICST, 1984, pp. 169 - 188 Staff dispersed. In 1951 Tony Brooker had left to join the

Computing Machine Laboratory The Computing Machine Laboratory at the University of Manchester in the north of England was established by Max Newman shortly after the end of World War II, around 1946. The Laboratory was funded through a grant from the Royal Society, which was ...

at the

University of Manchester The University of Manchester is a public university, public research university in Manchester, England. The main campus is south of Manchester city centre, Manchester City Centre on Wilmslow Road, Oxford Road. The University of Manchester is c ...

. 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.

* Wilks MV and Stringer LJB, Micro-Programming and the Design of the Control Circuits in an Electronic Computer, Proc. Camb. Phil. Soc., vol 49, no. 2, 1953 * Tocher KD, Classification and Design of Operation Codes for Automatic Computers, Proc. IEE, 103B, Supplement 1, Apr. 1956 * Tocher KD and Lehman MM, A Fast Parallel Arithmetic Unit, Proc. IEE 103B, Supplement 3, Apr. 1956, pp. 520 - 527 * Lehman MM, Parallel Arithmetic Units and Their Control, PhD Thesis, University of London, Feb. 1957, 160pps.+ * Lehman MM, Short-Cut Multiplication and Division in Automatic Binary Digital Computers with Special Reference to a New Multiplication Process, Proc. IEE, vol 105, Part B, No 23, Sept 1958, pps. 496 - 504 * Tocher KD, Techniques of Multiplication and Division for Automatic Binary Computers, Quart. J. of Mechanics and Appl. Maths., v. 11, p. 3, 1958, pps. 364 - 384 * http://www.macs.hw.ac.uk/~greg/icce/

References

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