Colossus: Bletchley Park's Greatest Secret by Paul Gannon

Colossus: Bletchley Park's Greatest Secret

Paul Gannon

592 pages first pub 2006 (editions)

nonfiction history technology informative slow-paced
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In 1940, almost a year after the outbreak of World War II, Allied radio operators at an interception station in South London began picking up messages in a strange new code. Using science, math, innovation, and improvisation, Bletchley Park code b...

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