Colossus : the secrets of Bletchley Park's codebreaking computers / B. Jack Copeland and others ; edited by B. Jack Copeland.

Includes bibliographical references and index.

A brief history of cryptography from Caesar to Bletchley Park / Simon Singh -- How it began : Bletchley Park goes to war / Michael Smith -- The German Tunny machine / Jack Copeland -- Colossus, codebreaking, and the digital age / Stephen Budiansky -- Machine against machine / Jack Copeland -- D-Day at Bletchley Park / Thomas H. Flowers -- Intercept! / Jack Copeland -- Colossus / Thomas H. Flowers -- Colossus and the rise of the modern computer / Jack Copeland -- The PC user's guide to Colossus / Benjamin Wells -- Of men and machines / Brian Randell -- The Colossus rebuild / Tony Sale -- Mr. Newman's section / Jack Copeland, with Catherine Caughey ... [et al.] -- Max Newman : mathematician, codebreaker, and computer pioneer / William Newman -- Living with Fish : breaking Tunny in the Newmanry and the Testery / Peter Hilton -- From Hut 8 to the Newmanry / Jack Good -- Codebreaking and Colossus / Donald Michie -- Major Tester's section / Jerry Roberts -- Setter and breaker / Roy Jenkins -- An ATS girl in the Testery / Helen Currie -- The Testery and the breaking of Fish / Peter Edgerley -- Dollis Hill at war / Jack Copeland, with David Bolam ... [et al.] -- The British Tunny machine / Gil Hayward -- How Colossus was built and operated : one of its engineers reveals its secrets / Harry Fensom -- Bletchley Park's Sturgeon : the Fish that laid no eggs / Frode Weierud -- German teleprinter traffic and Swedish wartime intelligence / Craig McKay