The first modern computers were the massive code breaking machines of the Second World War (such as Z3, ENIAC and Colossus).

In 2008, a book called "CLUE" code breaking puzzles", was released.

The eccentric, arrogant author throws a code breaking contest at his villa to determine the lucky recipient.

Because of their theoretical ability to calculate large sets of numbers in a relatively short period of time, digital computers were drafted into the war effort in the United Kingdom as a code breaking device.

It was initially crash prone, but the immediate feedback of code breaking the build, the loss of pride, and the knowledge of impeding the work of others were all powerful incentives.

Last year he was presented with a special medal from the Prime Minister, in recognition of his contribution to the code breaking effort.

It was designed for only one code breaking task.

From September 1938, Turing had been working part-time with the Government Code and Cypher School (GCCS), the British code breaking organisation.

By using statistical techniques to optimise the trial of different possibilities in the code breaking process, Turing made an innovative contribution to the subject.

Three former staff and a pupil at the Harvey worked at the once secret code breaking centre at Bletchley Park near Milton Keynes, which was recently made public and has become a tourist attraction.