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The handwritten workings were used to insulate the unheated huts where chilly Turing and his colleagues raced to break enemy codes.
Estimated to have taken two years off WWII, saving countless lives, the code and cipherbreaking of Bletchley Park was instrumental to the Allies' win. Here's a photo tour of this once-secret pantheon of codebreaking, and the birthplace of the modern computer.
The next installment in a mysterious scavenger hunt that's baffled the Internet may have been posted online.
Vilified by the British government for his homosexuality -- a fact that many say led to his suicide -- the famous mathematician and Enigma code-breaker is now likely to receive a posthumous pardon.
The father of modern computing is to be granted a posthumous pardon, thanks to a backbench bill tabled for the end of October.
The microcomputer will get a special version of Microsoft software, Google and Uber hit the road and "Black Mirror" could be remade in the US.
An original piece of the EDSAC, a precursor to the first business computer, has been sent from Pennsylvania to the UK to take up residence at code-breaking site Bletchley Park.
A 56-page notebook in which the computer scientist and mathematical genius worked on the foundations of computing will fall under the hammer in April.
It was called a day that would live in infamy: December 7, 1941. Today Pearl is a busy harbor for US Navy and civilian traffic, and home to some incredible museums.
Benedict Cumberbatch is on enigmatic form as the computing pioneer and war hero, but this biopic doesn't quite crack the code.