Bombes, Cribs and Colossi
R.O. Gandy, 26 May 1994
Codebreakers: The Inside Story of Bletchley Park
edited by F.H. Hinsley and Alan Stripp.
Oxford, 321 pp., £17.95, August 1993,0 19 820327 6 Show More
edited by F.H. Hinsley and Alan Stripp.
Oxford, 321 pp., £17.95, August 1993,
“... changing; analysis at Bletchley had not found any discernible pattern. One night when traffic was light, two of the Cheadle computors sorted out the messages not by statistical means, but according to the style apparent in the choice of call-sign and found that this gave a coherent classification. Subsequently they were able to show that the size of a unit ... ”