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May 30, 2024 · He died by cyanide poisoning the day before and the coroner deemed his death suicide, the cyanide believed to have been injected into the apple.
Turing died on 7 June 1954, aged 41, from cyanide poisoning. An inquest determined his death as suicide, but the evidence is also consistent with accidental poisoning. [15] . Following a campaign in 2009, British prime minister Gordon Brown made an official public apology for "the appalling way [Turing] was treated".
Dec 26, 2013 · The spate of obituary-like profiles of the outstanding mathematician and computing pioneer that have appeared over the last week have outlined his numerous achievements.
Jun 5, 2019 · On June 7, 1954, Alan Turing, a British mathematician who has since been acknowledged as one the most innovative and powerful thinkers of the 20th century — sometimes called the progenitor of...
- Overview
- Early life and career
- The Entscheidungsproblem
- The Church-Turing thesis
- Code breaker
Alan Turing (born June 23, 1912, London, England—died June 7, 1954, Wilmslow, Cheshire) British mathematician and logician who made major contributions to mathematics, cryptanalysis, logic, philosophy, and mathematical biology and also to the new areas later named computer science, cognitive science, artificial intelligence, and artificial life.
The son of a civil servant, Turing was educated at a top private school. He entered the University of Cambridge to study mathematics in 1931. After graduating in 1934, he was elected to a fellowship at King’s College (his college since 1931) in recognition of his research in probability theory. In 1936 Turing’s seminal paper “On Computable Numbers,...
What mathematicians called an “effective” method for solving a problem was simply one that could be carried by a human mathematical clerk working by rote. In Turing’s time, those rote-workers were in fact called “computers,” and human computers carried out some aspects of the work later done by electronic computers. The Entscheidungsproblem sought ...
An important step in Turing’s argument about the Entscheidungsproblem was the claim, now called the Church-Turing thesis, that everything humanly computable can also be computed by the universal Turing machine. The claim is important because it marks out the limits of human computation. Church in his work used instead the thesis that all human-computable functions are identical to what he called lambda-definable functions (functions on the positive integers whose values can be calculated by a process of repeated substitution). Turing showed in 1936 that Church’s thesis was equivalent to his own, by proving that every lambda-definable function is computable by the universal Turing machine and vice versa. In a review of Turing’s work, Church acknowledged the superiority of Turing’s formulation of the thesis over his own (which made no reference to computing machinery), saying that the concept of computability by a Turing machine “has the advantage of making the identification with effectiveness…evident immediately.”
Britannica Quiz
Having returned from the United States to his fellowship at King’s College in the summer of 1938, Turing went on to join the Government Code and Cypher School, and, at the outbreak of war with Germany in September 1939, he moved to the organization’s wartime headquarters at Bletchley Park, Buckinghamshire. A few weeks previously, the Polish governm...
Dec 5, 2019 · Death and Posthumous Pardon In June 1954, Turing's housekeeper found him dead. A post-mortem examination determined that he had died of cyanide poisoning, and the inquest ruled his death as suicide.
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Jun 23, 2021 · On June 8, 1954, Turing’s housekeeper found him dead of cyanide poisoning, with a half-eaten apple by his bedside, which was thought to be the method of ingestion. He was cremated at Woking Crematorium and his ashes were scattered in the crematorium’s gardens, where his father’s had been scattered before him.
