Alan Mathison Turing (23 June 1912 – 7 June 1954) is widely considered to be the father of computer science and artificial intelligence. He was highly influential in the development of computer science, providing a formalisation of the concepts of “algorithm” and “computation” with the Turing machine, which played a significant role in the creation of the modern computer.
During the Second World War, Turing was a leading participant in the breaking of German ciphers at Bletchley Park.
From 1945 to 1947 Turing lived in Richmond, London while he worked on the design of the ACE (Automatic Computing Engine) at the National Physical Laboratory (NPL). He presented a paper on 19 February 1946, which was the first detailed design of a stored-program computer.
On 8th of June 1954, Turing’s cleaner found him dead; he had died the previous day. A post-mortem examination established that the cause of death was cyanide poisoning. When his body was discovered an apple lay half-eaten beside his bed, and although the apple was not tested for cyanide, it is speculated that this was the means by which a fatal dose was consumed.