Rear view of the rebuilt Bombe at Bletchley Park. This shows the patch panels and 26-way cables used to wire up the 'menus'. It includes the 'diagonal boards' which, despite their name, are physically rectangular. The bombe was an electro-mechanical device used by British cryptologists to help decipher German Enigma-machine-encrypted secret messages during World War II. The initial design of the bombe was produced in 1939 at the UK Government Code and Cypher School (GC&CS) at Bletchley Park by Alan Turing, with an important refinement devised in 1940 by Gordon Welchman

- Image ID: RJAAX3
Rear view of the rebuilt Bombe at Bletchley Park. This shows the patch panels and 26-way cables used to wire up the 'menus'. It includes the 'diagonal boards' which, despite their name, are physically rectangular. The bombe was an electro-mechanical device used by British cryptologists to help decipher German Enigma-machine-encrypted secret messages during World War II. The initial design of the bombe was produced in 1939 at the UK Government Code and Cypher School (GC&CS) at Bletchley Park by Alan Turing, with an important refinement devised in 1940 by Gordon Welchman
World History Archive / Alamy Stock Photo
Image ID: RJAAX3

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