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Issue No. 02 - April-June (2006 vol. 28)
ISSN: 1058-6180
pp: 44-55
A number of cryptanalysis projects were developed in the UK during the postwar years 1945?1955. One of the most significant of these was Oedipus, a special-purpose rapid analytical machine using novel digital storage. Oedipus was developed by GCHQ and the UK companies Elliott and Ferranti. Oedipus contained a large semiconductor associative memory, a magnetic drum with on-the-fly searching, and a high-speed RAM cache. Its history has only recently been made publicly available.
Digital storage, associative memory, GCHQ, Colossus, Bletchley Park; code-breaking, Oedipus, rapid analytical machine, Elliott Brothers (London) Ltd., Ferranti Ltd.

S. Lavington, "In the Footsteps of Colossus: A Description of Oedipus," in IEEE Annals of the History of Computing, vol. 28, no. , pp. 44-55, 2006.
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