The World's First Computer: Colossus
Bletchley Park, also known as Station X, is an estate located in the town of Bletchley, in Buckinghamshire, England. Since 1967, Bletchley has been part of Milton Keynes.
During World War II, Bletchley Park was the site of the United Kingdom's main decryption establishment. Ciphers and codes of several Axis countries were decrypted there, most importantly ciphers generated by the German Enigma and Lorenz machines.
The high-level intelligence produced at Bletchley Park, codenamed Ultra, is credited with having provided crucial assistance to the Allied war effort and with having shortened the war, though Ultra's precise influence is still studied and debated.