The Turing Guide
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CHAPTER 22 Turing’s Zeitgeist brian e. carpenter and robert w. doran T his chapter reviews the history of Alan Turing’s design p ...
224 | 22 TURING’S zEITGEIST system kicker’—that didn’t sound like a theoretician. There were growing rumours of secret stuff hap ...
CARPENTER DORAN | 225 ENIAC and the plans for EDVAC after being appointed to NPL but just before taking up the job. Womersley un ...
226 | 22 TURING’S zEITGEIST called ‘popular’ form. He also foresaw a subroutine library, including floating-point routines. Amon ...
CARPENTER DORAN | 227 it in Germany, in the form of his Plankalkül language, without having read Turing’s paper. The next four i ...
228 | 22 TURING’S zEITGEIST A common technique in all modern computers is that memory addresses are ‘mapped’ for the convenience ...
CARPENTER DORAN | 229 1970 in the Digital Equipment Corporation’s PDP-11/20, designed by Gordon Bell, who used DEUCE while he wa ...
230 | 22 TURING’S zEITGEIST by stacking data items on top of each other and unstacking them in reverse. Turing described exactly ...
CARPENTER DORAN | 231 Conclusion How much credit should Turing get? It’s clear that he was the first to work seriously on a gene ...
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CHAPTER 23 Computer music jack copeland and jason long O ne of Turing’s contributions to the digital age that has largely been o ...
234 | 23 COmPUTER mUSIC version of the computer, and the basic designs for the new machine were handed over to Ferranti in July ...
COPElAND & lONG | 235 to be emitted at the loudspeaker, but the sound lasted no longer than a tick, a tiny fraction of a sec ...
236 | 23 COmPUTER mUSIC A royal surprise One day Christopher Strachey (Fig. 23.3) turned up at the Computing Machine Laboratory. ...
COPElAND & lONG | 237 To the astonishment of onlookers, the computer raucously hooted out the British national anthem, God S ...
238 | 23 COmPUTER mUSIC the hoot instruction ‘/V’ (pronounced ‘slash vee’). The complete tutorial occupied little more than half ...
COPElAND & lONG | 239 In teleprinter code ‘/’ is 00000 and ‘V’ is 01111: thus /V is the teleprinter code abbrevia- tion of t ...
240 | 23 COmPUTER mUSIC beats to complete. (As Williams and Kilburn put it, the basic rhythm of the Manchester com- puter was ‘f ...
COPElAND & lONG | 241 Table 23.2 The frequencies that the Mark II was able to play by means of loops containing four-beat in ...
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