The Turing Guide

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CHAPTER 18 Delilah–encrypting speech jack copeland O nce Enigma was solved and the pioneering work on Tunny was done, Turing’s b ...

184 | 18 DElIlAH—ENCRyPTING SPEECH have forbidden Turing’s involvement. During this time Turing also acted as consultant to the ...

COPElAND | 185 based himself there for the next two months.^13 The imposing thirteen-storey Bell Labs building was on Manhattan’ ...

186 | 18 DElIlAH—ENCRyPTING SPEECH As with Tunny, the receiver’s Delilah had to be synchronized with the sender’s, so that both ...

COPElAND | 187 After a few months the army sent several recent university graduates to Hanslope and Turing made two firm friends ...

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CHAPTER 19 Turing’s monument simon greenish, jonathan bowen, and jack copeland T oday Bletchley Park is a thriving monument to T ...

190 | 19 TURING’S mONUmENT introduction of the bombe, in 1940, was the start of Bletchley Park’s conversion into a code- breakin ...

GREENISH, BOwEN & COPElAND | 191 Frederick Winterbotham’s The Ultra Secret in 1974, followed by the BBC TV series The Secret ...

192 | 19 TURING’S mONUmENT site was leased to an innovation company things looked up financially; but expenditure still exceeded ...

GREENISH, BOwEN & COPElAND | 193 Herivel.^6 On 24 July a letter was published in The Times headed ‘Saving the heritage of Bl ...

194 | 19 TURING’S mONUmENT Social media too helped spread the word. In 2009 Stephen Fry, encouraged by Sue Black, tweeted:^9 bpa ...

GREENISH, BOwEN & COPElAND | 195 Turing. But these wonderfully clever mathematicians, language graduates and engineers were ...

196 | 19 TURING’S mONUmENT Conclusion Since the war Bletchley Park has fortunately remained largely intact, except for the loss ...

PART IV Computers after the war ...

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CHAPTER 20 Baby jack copeland T he modern computer age began on 21 June 1948, when the first electronic universal stored-program ...

200 | 20 BABy University and by Ferranti Ltd. Computers using the Williams tube memory included TREAC, built in Worcestershire a ...

COPElAND | 201 Jack Good. Until recently, Turing’s influence on Kilburn’s early thinking about computer archi- tecture went comp ...