ISO/IEC 2382-1:1993 definiert „computer program“: „A syntactic unit that conforms to the rules of a particular programming language and that is composed of declarations and statements or instructions needed to solve a certain function, task, or problem.“ Bis 2001 definierte die DIN 44300 „Informationsverarbeitung Begriffe“ identisch.
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Edsger W. Dijkstra: Cooperating sequential processes (EWD-123). E.W. Dijkstra Archive. Center for American History, University of Texas at Austin, September 1965. (Original)