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Colossus The Secrets Of Bletchley Parks Code Breaking Computers~tqw~ darksiderg

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Colossus: The Secrets Of Bletchley Park's Code-Breaking Computers
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Type.................: Ebook
Part Size............: 6,844,228 bytes




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The American ENIAC is customarily regarded as having been the starting point of
electronic computation. This book rewrites the history of computer science,
arguing that in reality Colossus--the giant computer built by the British secret
service during World War II--predates ENIAC by two years.

Colossus was built during the Second World War at the Government Code and Cypher
School at Bletchley Park. Until very recently, much about the Colossus machine
was shrouded in secrecy, largely because the code-breaking algorithms that were
employed during World War II remained in use by the British security services
until a short time ago. In addition, the United States has recently declassified
a considerable volume of wartime documents relating to Colossus. Jack Copeland
has brought together memoirs of veterans of Bletchley Park--the top-secret
headquarters of Britain's secret service--and others who draw on the wealth of
declassified information to illuminate the crucial role Colossus played during
World War II. Included here are pieces by the former WRENS who actually worked
the machine, the scientist who pioneered the use of vacuum tubes in data
processing, and leading authorities on code-breaking and computer science.

A must read for anyone curious about code-breaking or World War II espionage,
Colossus offers a fascinating insider's account of the world first giant
computer, the great great grandfather of the massive computers used today by the
CIA and the National Security Agency.

Table Of Contents

1 A brief history of cryptography from Caesar to Bletchley Park 9
2 How it began : Bletchley Park goes to war 18
3 The German Tunny machine 36
4 Colossus, codebreaking, and the digital age 52
5 Machine against machine 64
6 D-Day at Bletchley Park 78
7 Intercept! 84
8 Colossus 91
9 Colossus and the rise of the modern computer 101
10 The PC-user's guide to Colossus 116
11 Of mice and machines 141
12 The Colossus rebuild 150
13 Mr Newman's section 157
14 Max Newman - mathematician, codebreaker, and computer pioneer 176
15 Living with fish : breaking Tunny in the Newmanry and the Testery
189
16 From Hut 8 to the Newmanry 204
17 Codebreaking and Colossus 223
18 Major Tester's section 249
19 Setter and breaker 260
20 An ATS girl in the Testery 264
21 The Testery and the breaking of fish 269
22 Dollis Hill at war 281
23 The British Tunny machine 291
24 How Colossus was built and operated - one of its engineers reveals its
secrets 297
25 Bletchley Park's sturgeon - the fish that laid no eggs 307
26 German teleprinter traffic and Swedish wartime intelligence 328
App. A1 Timeline : the breaking of Tunny 337
App. A2 The teleprinter alphabet 348
App. A3 The Tunny Addition Square 350
App. A4 My work at Bletchley Park 352
App. A5 The tiltman break 370
App. A6 Turingery 378
App. A7 [Delta][subscript [Chi]]-method 386
App. A8 Newman's theorem 391
App. A9 Rectangling 396
App. A10 The motor-wheels and limitations 406
App. A11 Motorless Tunny 409
App. A12 Origins of the fish cypher machines 411

Product Details

* ISBN: 019284055X
* ISBN-13: 9780192840554
* Format: Hardcover, 344pp
* Publisher: Oxford University Press, USA
* Pub. Date: April 2006

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