| The Lorenz SZ40 messages were unlocked by two spectacular pieces of codebreaking. |
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| The codebreaking work at Bletchley is estimated to have shortened the second world war by two years and saved thousands of lives. |
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| Working in Hut 8 at Bletchley Park, then the home of GCHQ's forerunner, the Government Code and Cypher School, Turing found a way of reading messages sent by the Germans, using a codebreaking machine called the bombe. |
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| The principal characters in this drama are not the giant computers used for storage, analysis and codebreaking, or the technicians who built them. |
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| The role of the Post Office research laboratories at Dollis Hill, London, played a key role in the codebreaking activities at Bletchley Park, which was one of the origins of the first computers. |
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| Bletchley Park in north Buckinghamshire was the principal Allied centre for codebreaking. |
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| The thriller, about wartime codebreaking heroics, was first shown at a film festival last week. |
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| Codebreaking by itself did not decrease the losses, which continued to rise ominously. |
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