Alan Turing: The Enigma (130 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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Kjell from
Norway, Kjell crisis
476
,
483
,
494
;
significance of
503
Kleene, S. C.
112
,
114–5
,
117–8
,
129
,
133
Knightsbridge barracks
58
,
397
knitting, AMT’s efforts at
207
Knoop, L.
54
,
57
Knox, A. Dillwyn
147
,
151
,
157
,
161
,
187
,
208
,
268
Knutsford, Cheshire
471
Labour party
307–8
,
310–1
,
362
Lake district
75
,
269
,
387
lambda-calculus
112
,
114
,
125
,
129
,
133
,
401
n
language, natural, used by computer
382–3
,
423–4
,
478
languages, programming
326
,
332
,
358
,
367
,
372
,
401
,
478
Laplace
64
Latin
8
,
29
,
30
,
32
,
239
law, criminal, on homosexuality
77
,
458
,
461–2
,
466–7
,
482
;
change of
457
,
479
,
525
n,
534
n
learning, learning machines:
266
,
358–61
,
378–82
,
416–7
,
442–3
,
450–2
;
related to brain physiology
360
,
379
,
436
Lee, W. H. (‘Jumbo’)
271–2
,
345
,
366
;
and Mrs Lee
279–80
Lefschetz, S.
117
,
145
Leicester
428
,
489
,
495
level of description, in science,
64
,
96
,
107–8
,
291
,
372
;
AMT’s definitions
383–4
;
as used in
Mind
paper
405
,
418–26
,
522
;
and in morphogenesis
432
,
434
Levy, H.
404
liberalism
70–5
,
264
,
308–11
,
425
,
464
,
524
Life Force (Shaw)
see under
Spirit
Lighthill, M. J.
444
,
447
,
477
lighting, electric
56
,
68–9
Lind-Smith, G.
471–2
Lindeberg
88
Littlewood, J. E.
135
lobotomy
405
,
470
Lockspeiser, B.
393
logic, mathematical:
AMT introduced to by
Russell
81–6
;
introduced to Hilbert programme by Newman
90–4
;
AMT defines computability by Turing machine
100
;
settles
Entscheidungs problem
103–4
;
this related to Church’s lambda-calculus thesis
111–4
;
and to Post’s ‘worker’
125
;
further developments
119
,
123
,
129–31
,
133
;
ordinal logics
133
,
142–5
;
AMT and Wittgenstein
136
,
153–4
;
AMT’s further work (type theory) in war
215–6
; and after war
355
,
412
;
with Gandy
428
,
454
,
477
,
479
,
480
,
494
;
for elementary logic and logical operations
see
Boole
logical (Boolean) functions on computers
320
,
365
n,
409
logical control (of computer)
322–3
,
328
,
393
logistic view of mathematics
83–6
,
91
London Mathematical Society:
correspondence over
Computable Numbers
112–3
;
AMT’s talk to
356–61
; also quoted
318–20
,
321
,
330–1
Los Alamos
see under
atomic fission
love, love affairs
see under
sexuality
love letters, of computer
477–8
Lovelace, Ada
297
n,
304
,
357–8
Lowes Dickinson, G.
71
,
87
,
310
,
524
Lucas, E., method for testing primes
398
Lucas, Frank
149
,
161
Luftwaffe,
communications of,
see under
Enigma (German air force)
Lyons, J. (company)
56
,
375
,
473
Lyttleton, R. A.
113
,
132
McCarthy, Senator J.
500
,
501
n,
525
n
McCulloch, W.
252
,
304
,
343
,
404
,
411
Machine Intelligence
see under
brain
Mackay, D.
411
Maclean, Donald
501
,
507
Maclure, G.
58
MacPhail, Donald C.
155–6
,
158
MacPhail, Malcolm
137
,
155
,
394
McTaggert, John
63
,
66
magnetic core storage
315
n
magnetic drum, for computer storage
393
,
400
,
400
n
magnetic tape, in speech cipher
245
;
for computer storage
314
,
321
Maltby, Col.
286–7
Manchester, city of
151
,
239
,
289
,
394
,
428–9
Manchester Guardian
394
,
396
Manchester University
155
,
230
,
239
,
340
;
AMT appointed to
372
,
376
;
his trial and
465–6
;
reappointment
486
;
his slight interaction with its intellectual life
394–6
,
412
,
414–5
,
480
,
486
Manchester University Computer, Computing Laboratory:
origin of
340–2
,
349–50
,
372
;
first success of prototype
385
,
392
;
development
390–1
,
393–4
,
397–9
,
403
;
arrival of Mark I
437–8
;
work on Mark II
478
;
AMT’s diminishing
role in
394
,
397

403
,
438
,
440–1
,
444–5
,
478
;
as AMT’s personal computer
408–9
,
437
,
445
,
476
Marathon running
346
,
369
,
386
Marlborough College
10
,
19
,
21
,
30
Martin, A. Venable
119
,
127
,
142
,
153
Marxism
see under
communism; Bernal; Hogben
Massachusetts Institute of Technology
155
,
349
,
410
Massinger Society (King’s College)
75
mathematical logic
see
logic
Mathematical Recreations and Essays
(Rouse Ball)
56
,
165
,
167
,
442–3
mathematics: absoluteness of
61
;
‘pur’ and ‘applied’
61
;
modern abstractness of
80–1
;
logical foundations of
82–6
,
90–4
;
internationalist view of
60
;
nationalist view of
86
;
G. H. Hardy on usefulness of
120–1
;
Wittgenstein on philosophy of
153–4
;
AMT on future of, as career for boys
362–3
;
AMT out of touch with
441
,
479
;
AMT unsatisfied by
520
Matthews, Peter B. C.
372–3
,
387
,
389
Mauchly, J. W.
300
,
302
,
355
,
413
,
438
‘Maurice’
see
Pryce, M. H. L.
Maurice
(Forster)
78
,
310
Medawar, P.
474
n
medicine: inspires AMT
7
;
sickness not sin
73–4
,
459–61
;
treatment not punishment
467–71
,
505
,
505
n,
525
memory, of computers
see
storage
Merchant Navy, communications of
164–5
,
259–61
mercury
315
,
328
Mercury, AMT as
519
Mermagen, P. H. F.
37
,
52
,
362
Mersenne primes
134
,
397–8
,
406
,
406
n
Meyer, Rollo, Rev and Mrs
14–5
Michie, Donald:
and ‘Fish’
231
,
265–6
,
277–8
;
and machine intelligence
265–6
,
301
,
386–8
and silver bars
344–5
;
and trial
466–7
militarism
see
war
Military Intelligence
see
GC and CS;
also
secret service (for M16); security service (for MI5)
Mill, J. S.
73
,
77
,
308
,
425
Milner-Barry, P. S.
221
mind, problem of
see under
brain; determinism
Mind,
AMT’s 1950 paper ‘Computing Machinery and Intelligence’ in,
415–26
,
459–60
,
522
;
also
290–1
,
359
,
409
Ministry of Supply:
and ACE
335
,
353
,
368
,
376
;
and Manchester computer
393
;
also
509
MIT (Massachusetts Institute of Technology)
155
,
250
,
349
,
410
modular addition
162
,
228–9
,
247
,
274
,
276
molecular biology
252
,
410
,
431
Montagu, Lord, trials of
504–5
,
507
,
511
Montgomery, General (later Viscount)
234
,
240
,
245
,
534

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