The Turing Guide

242 | 23 COmPUTER mUSIC Analysing the notes Subroutines for playing lower notes require the addition of further instructions, si ...

COPElAND & lONG | 243 note-loops (e.g. Turing’s instruction TN) extends the number of playable notes. For instance, adding t ...

244 | 23 COmPUTER mUSIC sound. The Mark I, which was closed down in the summer of 1950,^43 was a slower machine than the Mark II ...

COPElAND & lONG | 245 the note D 3 , which occurs five times in the Manchester rendition of God Save the King. This note’s e ...

246 | 23 COmPUTER mUSIC that individual musical notes were heard earlier at Turing’s Computing Machine Laboratory, probably in N ...

COPElAND & lONG | 247 that sounded more in tune. In sum, it is possible that all three of the routines involved in play- ing ...

248 | 23 COmPUTER mUSIC Naturally we wanted to uncover the true sound of Turing’s computer. These ‘impossible notes’ in the reco ...

‘ CHAPTER 24 Turing, Lovelace, and Babbage doron swade T he principles on which all modern computing machines are based were enu ...

250 | 24 TURING, lOVElACE, AND BABBAGE warrants. Ideas articulated a century apart show a startling congruence, and this agitate ...

SwADE | 2 51 For all his wide interests the centre of his life was a near obsession with his calculating engines, and it is for ...

252 | 24 TURING, lOVElACE, AND BABBAGE figure 24.1 Difference Engine No. 1 demonstration piece, 1832 (top). View from above show ...

SwADE | 253 zeros. So finding the roots of an equation reduces to detecting the all-zero state in the results column and countin ...

figure 24.2 From Bromley, Allan, Ed. Babbage’s Calculating Engines: A Collection of Papers by Henry Prevost Babbage . Volume 2 . ...

SwADE | 255 ‘thinking’ was not lost on Babbage or his contemporaries. Harry Wilmot Buxton, a junior col- league of Babbage wrote ...

256 | 24 TURING, lOVElACE, AND BABBAGE figure 24.3 Analytical Engine, plan 25 (part), 1840. Reproduced with permission of the Sc ...

SwADE | 257 higher-order representation was used to manage vast and complex detail. Babbage had adopted the same route driven by ...

258 | 24 TURING, lOVElACE, AND BABBAGE There were several classes of punched card: ‘operation cards’ for instructions, ‘number c ...

SwADE | 259 and he in his early 40s. Babbage became, and remained, a close family friend until her death in 1852 at the age of 3 ...

260 | 24 TURING, lOVElACE, AND BABBAGE opening statements declaring the purpose of the machine differ in specifics, but in each ...

SwADE | 261 If we wished to tag the respective roles of Babbage, Lovelace, and Turing, it would be fair to say that Babbage’s in ...