## 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 120

Ciphering would be a very good example of a “definite method'

symbols, something that could be done by a Turing machine. It would be

essential to the nature of a cipher that the encipherer behave like a machine, in

accordance ...

Ciphering would be a very good example of a “definite method'

**applied**tosymbols, something that could be done by a Turing machine. It would be

essential to the nature of a cipher that the encipherer behave like a machine, in

accordance ...

Page 155

One of Alan's fellow 'B-stars' of 1934, the

been appointed as its junior member of staff. Such a machine would have been

useless for the zeta-function problem. Differential analysers could simulate only ...

One of Alan's fellow 'B-stars' of 1934, the

**applied**mathematician M.V. Wilkes, hadbeen appointed as its junior member of staff. Such a machine would have been

useless for the zeta-function problem. Differential analysers could simulate only ...

Page 522

Concepts of objective truth that worked so well for the prime numbers could not

so straightforwardly be

explained in introducing the central morphogenetic idea, any kind of

simplification was ...

Concepts of objective truth that worked so well for the prime numbers could not

so straightforwardly be

**applied**by scientists to other people. As he himselfexplained in introducing the central morphogenetic idea, any kind of

simplification was ...

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