Alan Mathison Turing (geboren am 23.06.1912 in London, England) war Logiker, Mathematiker, Kryptoanalytiker und Informatiker.
Er gilt heute als einer der einflussreichsten Theoretiker der frühen Computerentwicklung und Informatik. Turing schuf einen großen Teil der theoretischen Grundlagen für die moderne Informations- und Computertechnologie.
Das von ihm entwickelte Berechenbarkeitsmodell der Turing-Maschine bildet eines der Fundamente der Theoretischen Informatik.
Die Entschlüsselung des Enigma-Codes und dadurch der Kenntnis der gegnerischen Kriegspläne hat nach Meinung der meisten Historiker zur Verkürzung des Zweiten Weltkriegs beigetragen.
Alan Mathison Turing (born June 23, 1912 in London, England) was a logician, mathematician, cryptanalyst and computer scientist.
Today he is considered one of the most influential theorists of early computer development and computer science. Turing created a large part of the theoretical basis for modern information and computer technology.
The predictability model of the Turing machine he developed forms one of the foundations of theoretical computer science.
Alan Turing creates a standard test (Turing Test) to answer: "Can machines think?" He proposed that if a computer, on the basis of written replies to questions, could not be distinguished from a human respondent, then it must be "thinking".
During the Second World War, he was instrumental in deciphering the German radio messages encrypted with the German rotor cipher machine Enigma, but with the help of huge electro-mechanical machines that he had designed (Turing bomb) -- and later the Colossus -- and with help of cribs (part of the encrypted message in plain text.)
Acording to most historians, the decoding of the Enigma code and thus the knowledge of the enemy's war plans contributed to the shortening of the Second World War.