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
Results 1-3 of 92
Page 166
The Enigma Andrew Hodges. Nor was there anything secret about the basic Enigma machine . It had been exhibited in ... Enigma , was much more effective than the commercially available device . This did not mean that the German Enigma with ...
The Enigma Andrew Hodges. Nor was there anything secret about the basic Enigma machine . It had been exhibited in ... Enigma , was much more effective than the commercially available device . This did not mean that the German Enigma with ...
Page 168
... Enigma was contained in its ' table ' , a list of its states and what it would do in each state . And from a logical point of view , the action of the Enigma , in any given , fixed , state , enjoyed a very special property . It was a ...
... Enigma was contained in its ' table ' , a list of its states and what it would do in each state . And from a logical point of view , the action of the Enigma , in any given , fixed , state , enjoyed a very special property . It was a ...
Page 170
... Enigma . But it enormously increased the sheer number of states of the Enigma machine . There would be 1,305,093,289,500 ways * of connect- ing seven pairs of letters on the plugboard , for each of the 6 × 17576 rotor states ...
... Enigma . But it enormously increased the sheer number of states of the Enigma machine . There would be 1,305,093,289,500 ways * of connect- ing seven pairs of letters on the plugboard , for each of the 6 × 17576 rotor states ...
Contents
The Spirit of Truth | 46 |
New Men | 111 |
The Relay Race 160 | 160 |
Copyright | |
7 other sections not shown
Other editions - View all
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 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