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Alan Turing: Pioneer of Computer Science and Cryptography

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brennan-saunders
4 diapositives · 283 Views · Jan 23, 2019

Alan Turing (1912–1954) was a British mathematician, logician, and cryptographer, recognized as one of the foundational figures of modern computer science. He conceptualized the Turing machine and formulated the Church-Turing thesis, revolutionizing the understanding of algorithms and computation. During World War II, he played a pivotal role in breaking the Enigma code. Despite his groundbreaking contributions, Turing faced persecution for his homosexuality, leading to tragic consequences. His legacy is commemorated through various memorials and the prestigious Turing Award, akin to a Nobel Prize in computing.

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  1. Alan Mathison Turing (1912 – 1954) • Britishmathematician, logician, and cryptographer, • One of the fathers of modern computer science. • Britishmathematician, logician, and cryptographer, • One of the fathers of modern computer science.

  2. Some Contributions • Provided an influential formalization of the concept of algorithm and computation: the Turing machine. Also formulated the Church-Turing thesis stating that any practical computing model has either the equivalent or a subset of the capabilities of a Turing machine. • During World War II he worked on breaking German ciphers, particularly the Enigma machine. • He designed one of the earliest electronic programmable digital computers at the National Physical Laboratory.

  3. Death • Prosecution for his homosexuality crippled his career. He was charged with “gross indecency and sexual perversion”. • He unapologetically offered no defense, and was convicted. • He was given a choice between incarceration and estrogen hormonal treatment. He chose the latter. • In 1954, he died of cyanidepoisoning. His death was ruled a suicide.

  4. Recognition • A statue of Turing was unveiled in Manchester on June 23, 2001. • To mark the 50th anniversary of his untimely death, a memorial plaque was unveiled at his former residence 'Hollymeade' in Wilmslow on June 7, 2004. • The Turing Award is given by the Association for Computing Machinery to a person for technical contributions to the computing community. It is widely considered to be the equivalent of the Nobel Prize in the computing world.