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Alan Turing

Alan Mathison Turing (June 23, 1912 - June 7, 1954) was a British mathematician, logician, and cryptographer.

Turing is often considered to be a father of modern computer science.

Turing provided an influential formalisation of the concept of the algorithm and computation with the Turing machine, formulating the now widely accepted "Turing" version of the Church-Turing thesis, namely that any practical computing model has either the equivalent or a subset of the capabilities of a Turing machine.

Note: This article excerpts material from the Wikipedia article "Alan Turing", which is released under the GNU Free Documentation License.

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