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 103
... digit ? Or indeed , that it would produce any digits at all ? It might trundle back and forth in a repeated cycle of operations for ever , without producing more figures . It this were the case , the Cantor machine would be stuck , and ...
... digit ? Or indeed , that it would produce any digits at all ? It might trundle back and forth in a repeated cycle of operations for ever , without producing more figures . It this were the case , the Cantor machine would be stuck , and ...
Page 229
... digits as for decimal digits . If all keys were equally likely , then no weight of evidence could accrue to any particular possible plain - text . But that was not the case with these German transmissions . The key was generated by the ...
... digits as for decimal digits . If all keys were equally likely , then no weight of evidence could accrue to any particular possible plain - text . But that was not the case with these German transmissions . The key was generated by the ...
Page 402
... digits from noise , as opposed to something like a cipher key generator that would produce apparently random but actually determined digits . ( That , if he wanted it , he would surely program for himself . ) Perhaps he based his design ...
... digits from noise , as opposed to something like a cipher key generator that would produce apparently random but actually determined digits . ( That , if he wanted it , he would surely program for himself . ) Perhaps he based his design ...
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