Colossus: Bletchley Park's Last Secret

Colossus: Bletchley Park's Last Secret


By (author) Paul Gannon

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  • Publisher: ATLANTIC BOOKS
  • Format: Paperback | 588 pages
  • Dimensions: 130mm x 198mm x 28mm | 522g
  • Publication date: 11 January 2007
  • Publication City/Country: London
  • ISBN 10: 1843543311
  • ISBN 13: 9781843543312
  • Illustrations note: 8pp b&w plates
  • Sales rank: 182,187

Product description

In 1940, almost a year after the outbreak of the Second World War, Allied radio operators at an interception station in South London began picking up messages in a strange new code. Using science, maths, innovation and improvisation Bletchley Park codebreakers worked furiously to invent a machine to decipher what turned out to be the secrets of Nazi high command. It was called Colossus. What these codebreakers didn't realize was that they had fashioned the world's first true computer. When the war ended, this incredible invention was dismantled and hidden away for almost 50 years. Paul Gannon has pieced together the tremendous story of what is now recognized as the greatest secret of Bletchley Park.

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Author information

Paul Gannon writes on all aspects of information and communications technology.

Review quote

"* 'Paul Gannon has revealed a previously untold story... Colossus tells of the heroic efforts of the inventors and mathematicians who received no recognition for decades... but Gannon sets the record straight.' Simon Singh, The Times * 'Masterly in its breadth and sweep... His account of wartime interception and encryption is deeply researched... I commend the book to both the professional and the general reader.' Spectator"