Geniuses at War: Bletchley Park, Colossus, and the Dawn of the Digital Age

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Knopf Doubleday Publishing Group, Jun 22, 2021 - History - 256 pages
The dramatic, untold story of the brilliant team whose feats of innovation and engineering created the world’s first digital electronic computer—decrypting the Nazis’ toughest code, helping bring an end to WWII, and ushering in the information age.

• Winner, Institute of Electrical and Electronics Engineers Middleton Award for "a book ... that both exemplifies exceptional scholarship and reaches beyond academic communities toward a broad public audience." • A Kirkus Best Book of 2022 •


Planning the invasion of Normandy, the Allies knew that decoding the communications of the Nazi high command was imperative for its success. But standing in their way was an encryption machine they called Tunny (British English for “tuna”), which was vastly more difficult to crack than the infamous Enigma cipher.

To surmount this seemingly impossible challenge, Alan Turing, the Enigma codebreaker, brought in a maverick English working-class engineer named Tommy Flowers who devised the ingenious, daring, and controversial plan to build a machine that would calculate at breathtaking speed and break the code in nearly real time. Together with the pioneering mathematician Max Newman, Flowers and his team produced—against the odds, the clock, and a resistant leadership—Colossus, the world’s first digital electronic computer, the machine that would help bring the war to an end.

Drawing upon recently declassified sources, David A. Price’s Geniuses at War tells, for the first time, the full mesmerizing story of the great minds behind Colossus and chronicles the remarkable feats of engineering genius that marked the dawn of the digital age.
 

Contents

Prologue
3
The Right Type of Recruit
11
The Palace Coup
43
Breaking Tunny
69
The Soul of a New Machine
102
Decrypting for DDay
129
After the War
160
Turings Child Machine 1968
184
NOTES
191
BIBLIOGRAPHY
217
INDEX
233
Copyright

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About the author (2021)

DAVID A. PRICE was educated at the College of William and Mary, Harvard University, and the University of Cambridge. He is the author of The Pixar Touch and Love and Hate in Jamestown. Price lives with his wife in Richmond, Virginia.

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