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 162
... idea was hardly new ; Julius Caesar had concealed his communications from the Gauls by a process of adding on three ... idea of modular addition by a fixed number would hardly be adequate , but there was nothing out - of - date about the ...
... idea was hardly new ; Julius Caesar had concealed his communications from the Gauls by a process of adding on three ... idea of modular addition by a fixed number would hardly be adequate , but there was nothing out - of - date about the ...
Page 297
... idea of a practical universal machine . But as Alan knew by this time , that step had been made a hundred years before , by the British mathematician Charles Babbage ( 1791-1871 ) . He used to speak to Don Bayley of Babbage , and knew ...
... idea of a practical universal machine . But as Alan knew by this time , that step had been made a hundred years before , by the British mathematician Charles Babbage ( 1791-1871 ) . He used to speak to Don Bayley of Babbage , and knew ...
Page 298
... idea , his book The Principles of Economy being the foundation of modern management . These ideas were a hundred years ahead of their time , and were never to be embodied in working machinery during Babbage's lifetime . Government ...
... idea , his book The Principles of Economy being the foundation of modern management . These ideas were a hundred years ahead of their time , and were never to be embodied in working machinery during Babbage's lifetime . Government ...
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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 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