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 171
... method ' of using it . According to the actual method employed by the Germans , the initial state of the machine was partly decided at the time of use by the cipher clerk . Inevitably , therefore , it made use of indicators , and it was ...
... method ' of using it . According to the actual method employed by the Germans , the initial state of the machine was partly decided at the time of use by the cipher clerk . Inevitably , therefore , it made use of indicators , and it was ...
Page 174
... method . Instead , they had a method of piling pieces of the table of core positions on top of each other , staggered in a manner corresponding to the observed relative positions of the females . A ' matching ' of the pattern would then ...
... method . Instead , they had a method of piling pieces of the table of core positions on top of each other , staggered in a manner corresponding to the observed relative positions of the females . A ' matching ' of the pattern would then ...
Page 176
... method unlikely to work . Be- hind all this lay a deeper problem , which was that the chief Polish methods depended entirely upon the specific indicator system used . Something quite new was required . And this was where Alan played his ...
... method unlikely to work . Be- hind all this lay a deeper problem , which was that the chief Polish methods depended entirely upon the specific indicator system used . Something quite new was required . And this was where Alan played his ...
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Alan Turing Alan Turing's Alan wrote Alan's American AMT's arithmetic Bletchley Bletchley Park Bombe boys brain 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 explained fact G.H. Hardy German Hanslope Hilbert homosexual human idea 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 principle 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