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. |
From inside the book
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Page 301
... ENIAC was still incomplete , and would come too late to have any use whatever in the war . It required a greater total number of valves than the Colossi because it stored long decimal numbers - the more so because of the primitive ...
... ENIAC was still incomplete , and would come too late to have any use whatever in the war . It required a greater total number of valves than the Colossi because it stored long decimal numbers - the more so because of the primitive ...
Page 302
... ENIAC had not been conceived as a universal machine , and in one important respect the designers had departed from Babbage's line of development . Babbage had been proud of the fact that the planned Analytical Engine would be able to ...
... ENIAC had not been conceived as a universal machine , and in one important respect the designers had departed from Babbage's line of development . Babbage had been proud of the fact that the planned Analytical Engine would be able to ...
Page 335
... ENIAC , and gives a ' memory ' capacity of 6000 numbers compared with the 20 numbers of the ENIAC if the ACE is not developed in this country the USA will sweep the field .... this country has shown much greater flexibility than the ...
... ENIAC , and gives a ' memory ' capacity of 6000 numbers compared with the 20 numbers of the ENIAC if the ACE is not developed in this country the USA will sweep the field .... this country has shown much greater flexibility than the ...
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Common terms and phrases
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 explained 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 principle problem question Robin Gandy rotor scientific secret Shaun Wylie Sherborne signals symbols talk tape teleprinter theorem theory thing thought took Turing machine U-boat universal machine Womersley word writing