David Michael Ritchie Park (1935 – 29 September 1990) was a British

computer scientist A computer scientist is a person who is trained in the academic study of computer science. Computer scientists typically work on the theoretical side of computation, as opposed to the hardware side on which computer engineers mainly focus ( ...

. He worked on the first implementation of the programming language

Lisp A lisp is a speech impairment in which a person misarticulates sibilants (, , , , , , , ). These misarticulations often result in unclear speech. Types * A frontal lisp occurs when the tongue is placed anterior to the target. Interdental lispi ...

. He became an authority on the topics of fairness, program schemas and

bisimulation In theoretical computer science a bisimulation is a binary relation between state transition systems, associating systems that behave in the same way in that one system simulates the other and vice versa. Intuitively two systems are bisimilar if ...

concurrent computing Concurrent computing is a form of computing in which several computations are executed '' concurrently''—during overlapping time periods—instead of ''sequentially—''with one completing before the next starts. This is a property of a sys ...

. At the

University of Warwick , mottoeng = Mind moves matter , established = , type = Public research university , endowment = £7.0 million (2021) , budget = £698.2 million (202 ...

, he was one of the earliest members of the

computer science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to practical disciplines (includin ...

department, and served as

chairperson The chairperson, also chairman, chairwoman or chair, is the presiding officer of an organized group such as a Board of directors, board, committee, or deliberative assembly. The person holding the office, who is typically elected or appointed by ...

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* 1935 births 1990 deaths British computer scientists Massachusetts Institute of Technology alumni {{Compu-scientist-stub