Alan Mathison Turing (1912-1954) was the first to carry out substantial
re- search in the field now known as Artificial Intelligence (AI). He
was thinking about machine intelligence at least as early as 1941 and
during the war cir- culated a typewritten paper on machine intelligence
among his colleagues at the Government Code and Cypher School (GC & CS),
Bletchley Park. Now lost, this was undoubtedly the earliest paper in the
field of AI. It probably concerned machine learning and heuristic
problem-solving; both were topics that Turing discussed extensively
during the war years at GC & CS, as was mechanical chess [121]. In
1945, the war in Europe over, Turing was recruited by the National
Physical Laboratory (NPL)! in London, his brief to design and develop an
electronic stored-program digital computer-a concrete form of the
universal Turing machine of 1936 [185]. Turing's technical report
"Proposed Electronic 2 Calculator", dating from the end of 1945 and
containing his design for the Automatic Computing Engine (ACE), was the
first relatively complete spec- ification of an electronic
stored-program digital computer [193,197]. (The document "First Draft
of a Report on the EDVAC", produced by John von Neumann and the Moore
School group at the University of Pennsylvania in May 1945, contained
little engineering detail, in particular concerning elec- tronic
hardware [202].