Alan Turing: The EnigmaA gripping story of mathematics, science, computing, war history, cryptography, and homosexual persecution and liberation. Hodges tells how Turing's revolutionary idea of 1936-- the concept of a universal machine-- laid the foundation for the modern computer. Turing brought the idea to practical realization in 1945 with his electronic design. This work was directly related to Turing's leading role in breaking the German Enigma ciphers during World War II, a scientific triumph that was critical to Allied victory in the Atlantic. Despite his wartime service, Turing was eventually arrested, stripped of his security clearance, and forced to undergo a humiliating treatment program-- all for trying to live honestly in a society that defined homosexuality as a crime. This New York Times bestselling biography of the founder of computer science and artificial intelligence is the definitive account of an extraordinary mind and life. --Excerpted from 2014 version, published by Princeton University Press. |
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Page 96
... particular mass or chemical composition . Alan had to abstract this quality of being determined , and apply it to the manipulation of symbols . People had spoken , as Hardy did , of ' mechanical rules ' for mathematics , of ' turning ...
... particular mass or chemical composition . Alan had to abstract this quality of being determined , and apply it to the manipulation of symbols . People had spoken , as Hardy did , of ' mechanical rules ' for mathematics , of ' turning ...
Page 174
... particular letter that appeared as female in the cipher - text . It was essential to the principle of the method that these particular letters had to be among those left unaffected by the plugboard . Since in 1938 the plugboard was ...
... particular letter that appeared as female in the cipher - text . It was essential to the principle of the method that these particular letters had to be among those left unaffected by the plugboard . Since in 1938 the plugboard was ...
Page 175
... particular ' females ' occurred . The relative core - positions of these six Enigmas would be fixed by the known ... particular hurdle was passed , only to confront them with the problem the Poles had found insoluble : 7 When the various ...
... particular ' females ' occurred . The relative core - positions of these six Enigmas would be fixed by the known ... particular hurdle was passed , only to confront them with the problem the Poles had found insoluble : 7 When the various ...
Contents
The Spirit of Truth | 46 |
New Men | 111 |
The Relay Race 160 | 160 |
Copyright | |
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Alan Turing Alan Turing's Alan wrote Alan's American AMT's arithmetic Bletchley Bletchley Park Bombe boys brain Britain British calculation called Cambridge cathode ray tube chess Christopher cipher Computable Numbers cryptanalytic Darwin delay line Delilah differential analyser digits discussion Don Bayley Donald Michie EDVAC electronic enciphered engineering ENIAC Enigma machine fact G.H. Hardy German Hanslope Hilbert homosexual human idea instructions intelligence interest kind King's knew letter logical Manchester mathematician mathematics Max Newman mechanical messages method mind Morcom naval Enigma Neumann never Newman operations organisation paper perhaps Peter Hilton physical play plugboard position possible Princeton problem question Robin Gandy rotor scientific secret sexual Shaun Wylie Sherborne signals symbols talk tape teleprinter theorem theory thing thought took Turing machine U-boat universal machine Womersley word writing