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Colossus: The Secrets of BletchleyPark's Code-breaking Computers (Popular Science) (Hardcover)

by Jack Copeland (Editor) "The story of the Enigma cipher machine and its defeat by the Bletchley Park codebreakers astounded the world..." (more)
Key Phrases: extended psi, bitwise encryption, thyratron rings, Bletchley Park, Dollis Hill, Heath Robinson (more...)

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