Alan Mathison Turing was born the 23 June 1912 and died the 7 June 1954. He was a british man and was a mathmatician, logician, and a computer scientist. He was a very important influence in the development of computer science. He created the Turing machine, which is considered to be model of a general purpose computer.
During world war two, Turing worked for the Goverment code and cypher school at Bletchley Park, britain's code-breaking centre. For a time he was head of hut eight, the section responsible for German naval cryptanalysis(a way of looking at information systems in order to find hidden aspects of the systems). He made a number of techniques for breaking German codes, including the method of the bombe an electromechanical machine that could find settings for the enigma machine(a machine used for the code writing and code breaking of messages).
After the war Alan worked at National Physical Labarotary where he created one of the first designs for a stored-program computer.
Turing's homosexuality resulted in a criminal prosecution in 1952, when being gay or lesbian were still illegal in the United kingdom. Turing died in 1954, just over two weeks before his 42nd birthday, from cyanide poisoning. An inquest determined that his death was suicide; his mother and some others believed his death was accidental. On 10 September 2009, following an internet campain The prime minister Gordon Brown made an official public apology on behalf of the british government for "the appalling way he was treated".