Ferranti Atlas Provisional Programming Manual

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Ref: LIst CS 348
January 1963
112 page illustrated manual


The Atlas Computer was a joint development between the University of Manchester, Ferranti, and Plessey. The first Atlas, installed at Manchester University and officially commissioned in 1962, was one of the world's first supercomputers, considered to be the most powerful computer in the world at that time. It was said that whenever Atlas went offline half of the United Kingdom's computer capacity was lost. It was a second-generation machine, using discrete germanium transistors.

-Two other Atlas machines were built: one for British Petroleum and the University of London, and one for the Atlas Computer Laboratory at Chilton near Oxford. A derivative system was built by Ferranti for Cambridge University. Called the Titan, or Atlas 2, it had a different memory organisation and ran a time-sharing operating system developed by Cambridge Computer Laboratory. Two further Atlas 2s were delivered: one to the CAD lab at Cambridge, and the other to the Atomic Weapons Establishment, Aldermaston.

The University of Manchester's Atlas was decommissioned in 1971, but the last was in service until 1974.[4] Parts of the Chilton Atlas are preserved by the National Museums of Scotland in Edinburgh.

We are extremely grateful to both Dawn and Kim Wakefield for the kind donation of the collection of their late father Richard Wakefield



Reference Number :

Date Published : January 1963

Manufacturer : Ferranti

Platform : Atlas






This exhibit has a reference ID of CH15674. Please quote this reference ID in any communication with the Centre for Computing History.

Ferranti Atlas Provisional Programming Manual

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