Alan Turing: The Enigma (125 page)

Read Alan Turing: The Enigma Online

Authors: Andrew Hodges

Tags: #Biography & Autobiography, #Science & Technology, #Computers, #History, #Mathematics, #History & Philosophy

BOOK: Alan Turing: The Enigma
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doubts
63

6
,
68

70
Aiken, H. H.,
see
Harvard
Air Force (British), communications of
165
Air Force (German), communications of
see under
Enigma
alcohol, used by computer
328
Alexander, A. V.
238
Alexander, C. Hugh O’D.:
as chess master
198
,
207
,
478
;
in naval Enigma
198
,
204
,
221
,
227
,
234
,
262
,
268
;
and GCHQ
496
;
and trial
464
,
472
algebra
11
,
80
,
333
,
478
;
see also
groups; word problem; Boolean algebra
Allen, Clifford
461
almost periodic functions
95
,
131
America
see
United States
analogue computer
295–7
;
see also
differential analyser; zeta-function machine
Anderson, J.
386
Andrews, A. J. P.
22
,
37
,
39
,
52
Anna Karenina
(Tolstoy)
475
Annan, Noel
397
Anti-war movement
70

1
,
87
;
see also
war
Apostles (Cambridge society), AMT not in
75
,
371
,
373
,
509
apples
279
,
427
;
as forbidden fruit
9
,
520
;
death from
129
,
149
,
488–9
, note
8
.
67
Appleton, E.
340
arithmetic: in mathematics,
see
numbers, theory of; Peano axioms;
on computers,
320–1
,
323
,
325
,
327–8
,
365
n,
391
Army, British:
communications of
165
;
AMT’s view of
271
,
282
,
286–7
;
OTC at school
24
,
53
,
58
;
Home Guard,
231–2
Army, US, AMT and
311–2
‘Arnold’
see
Murray, Arnold
Artificial Intelligence
see under
brain
artillery
see
ballistics
Ashby, W. Ross
359–60
,
363
,
411–2
,
469
n
Association of Scientific Workers.
118
,
364
astronomy: at school
34
,
40
,
43–6
,
51
,
55–6
;
also
450
,
452
,
454
,
490
Atanasoff, J. V.
301
n
atheism
see
religion
athletics
see
running; rowing
Atkins, James H:
friendship with AMT
75–6
,
87–8
,
129
,
136
;
after war
368
,
489
,
520
;
also
273
, note
8
.
67
Atlantic, battle of:
early period
194–5
,
200–2
,
217–9
,
222–4
;
crisis of
234–6
,
240
,
242–5
,
259–62
;
Allied supremacy
263
,
288–9
,
312
;
atomic fission:
AMT’s early knowledge
149–50
,
312
,
344
;
in USA (Los Alamos)
251
,
300
,
302
,
304
,
312
;
in Britain
350
,
392–3
,
438
,
440
,
502
n;
see also
hydrogen bomb
Augenfeld, Robert
150–1
,
157–9
,
193
,
206
,
239
,
264
,
389
,
396
,
427–8
,
465
Austen, Jane
426
,
475
Austria: skiing
88
,
482–3
;
Anschluss
144
;
Nazi persecution
150–1
,
153
,
193
,
264
;
Wittgenstein
153
,
381
automata
see under
Turing machine; brain
Automatic Computing Engine
see
ACE
B. Dienst
(German
cryptanalysis)
189
,
253
,
259–62
B-star wrangler
see
examinations
Babbage, Charles
known of by AMT
297
;
compared with AMT
298
,
363
;
Analytical Engine
109
,
297–8
,
317
;
related to 1937–45 machines
299
,
301–2
;
related to computer
303–4
,
323–4
;
see also
Lovelace, Lady Ada
Back to Methuselah
(Shaw)
AMT sees
72
;
allusions
74
,
78–9
,
127
,
143
,
158
,
266
,
362
,
417
Baer, R.
123
,
129
Balchin, Nigel
286
ballistics: use of ENIAC for
301
,
332–3
;
use of ACE for
332–3
,
335
n,
362
Banburismus, Banbury
197
,
233
Bates, Audrey
401
Bates, John A. V.
412
Baudot-Murray code
228
,
270–1
,
399
,
482
n
Bayes, Thomas
196
;
see under
probability
Bayley, Donald: as Delilah assistant
273–4
,
276
,
278
,
284–8
;
takes over Delilah
290
,
345–6
;
as wartime colleague
279–84
,
289
,
517
;
and ACE plans
295
,
307
,
314–6
;
post-war contact
339
,
345
,
366
,
373
,
395
,
438
,
479
,
480
,
496
,
520
Bayly, Prof.
252
,
271
BBC
see under
radio
Behaviourism
98
,
107
n,
291
,
379–81
,
416–7
,
471
Bell Laboratories (New York):
AMT at
245–53
,
274
,
286
;
speech encipherment at
245–8
,
252
;
relay calculator at
299
Bennett, Christopher
446
,
484
Bennett, John N. P.
47–8
Bensly, W. J.
32
Beobachter Dienst see B. Dienst
Bernal, J. D.
140
n,
404
,
524
Bernays, P.
117
,
119
,
133
Beuttell, Alfred W.
56
,
68–9
,
136
,
272
Beuttell, Gerard
136
Beuttell, Ida A.
55–6
,
68
Beuttell, Victor F.
55–8
,
68–9
,
114–5
,
127
,
136
,
272
,
381
Bevin, Ernest
311
bicycles, AMT and
20–1
,
89
,
209
,
279
,
345
,
387
,
395
,
489
binary numbers
see under
numbers
biology
see
under growth; brain; genetics; molecular biology; hormones
Birch, Frank
161
,
187
Birkhoff, G. D.
123
birth (of AMT)
5
bishops
122–3
,
128
,
287
,
418
,
474
,
505
Bismarck
200–1
bit (of information)
250
;
see also
numbers, binary
Black, Gordon
489
Blackett, P.M.S.: in war
230
,
307
n;
and Manchester computer
340–2
,
349
,
376
,
393
;
as socialist
364
,
393
,
509
;
and trial
465
Blackpool
496
Blarney, M. H.
30–1
,
36
,
45–8
,
52
,
69
Blenkins, Mr
10
,
11
Bletchley, Bletchley Park:
location
160
;
see under
GC and CS for work at;
see also
Shenley
boats, boating:
rowing
62
,
76
,
89
,
115
,
354
;
canoeing
115
;
sailing
114
,
136
,
158
,
369–70
‘Bob’ see
Augenfeld, Robert
Bohnenblust, H. F.
145
Bombes (machines for Enigma analysis):
Polish
175–6
,
181
n
British
176

185
,
201
,
211
,
277
;
development of
181
,
184
,
191
,
204
,
220–1
,
252
;
crisis over
224–7
,
235–6
;
American
235–6
,
262–3
;
related to computer
181
n,
293
,
296
,
323
,
329
Boole, G.
139
Boolean algebra
138–9
,
251–2
,
271
Boolean (logical) functions on computers
320
,
365
n,
409
Booth, A.
393
Boothby, Robert
505
Borel, E.
212
Born, M.
86
Bosham, Sussex
158
,
369–70
botany,
see
plants; daisy; fir cone
Boughey, C. L. F.
30–2
,
58–9
Brabazon, Lord
505
brain: childhood reading about
12–3
,
17
,
28
,
291
,
379
;
problem of mind and
63–6
,
69
;

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