Alan Turing
1912–1954Mathematician and logician. Formalized the notion of computation, broke Enigma at Bletchley, and proposed what would become the canonical thought experiment for machine intelligence.
- Turing machine (1936) — the model of computation that underlies every CPU since.
- The Turing Test (1950) — a philosophical benchmark that still anchors debates about machine intelligence.
- Cryptanalysis at Bletchley Park — shortened WWII by an estimated two years.
FAQ
What is the Turing machine?
A mathematical model of computation Turing introduced in 1936. It formalises what it means for a function to be computable, and every modern CPU is, in effect, an implementation of one.
What is the Turing Test?
A thought experiment proposed in Turing's 1950 paper Computing Machinery and Intelligence. A machine passes if a human evaluator, exchanging text messages with both a person and the machine, cannot reliably tell which is which.
What did Alan Turing do at Bletchley Park?
He led work on breaking the German Enigma cipher during WWII. The bombe — an electromechanical device he designed with Gordon Welchman — automated key recovery and is widely credited with shortening the war by about two years.
Why is Turing called the father of computer science?
Because his 1936 paper defined the universal computing machine, his work at Bletchley showed that computation could solve real-world problems at scale, and his 1950 paper opened the field of artificial intelligence.