Alan Turing, The Bombe, Gordon Welchman, Tommy Flowers, and 3 others

This brown commemorative plaque records: IEEE Milestone in Electrical Engineering and Computing Code-breaking at Bletchley Park during World War II, 1939-45. On this site during the 1939-45 World War, 12,000 men and women broke the German Lorenz and Enigma ciphers, as well as Japanese and Italian codes and ciphers. They used innovative mathematical analysis and were assisted by two computing machines developed here by teams led by Alan Turing: the electro-mathematical Bombe developed with Gordon Welchman, and the electronic Colossus designed by Tommy Flowers. These achievements greatly shortened the war, thereby saving countless lives. Recorded plaque organisation: Institute of Electrical and Electronics Engineers.

Alan Turing, along with Gordon Welchman and Tommy Flowers, was instrumental in developing the Bombe and Colossus machines that decrypted German Enigma and Lorenz ciphers at Bletchley Park during World War II, significantly contributing to the Allied victory.