Adriaan van Wijngaarden and the start of in the

Jos Baeten, Centrum Wiskunde & Informatica and Institute for Logic, Language and Computation, UvA and the start of computer science in the Netherlands

Jos Baeten, Centrum Wiskunde & Informatica and Institute for Logic, Language and Computation, UvA Adriaan van Wijngaarden 2 November 1916 – 7 February 1987

Graduated TH Delft Mechanical Engineering 1939 PhD TH Delft on calculations for a ship propellor 1945

London February 1946: look at mathematical machines Stichting Mathematisch Centrum

11 February 1946 Mathematics as a service

Pure mathematics department Statistics department department (1947) Applied mathematics department (1948) 1 January 1947 head of computing department

1 January 1947 head of computing department ‘Girls of Van Wijngaarden’ 1947: in the UK, also USA

Met Turing, Von Neumann, others Plantage Muidergracht 6 Automatische Relais Rekenmachine Tweede Boerhaavestraat 49

ARRA II

N.V. Elektrologica, 1957

Algol 60

• In 1955, committee started on unified notation of computer programs

• Friedrich Bauer, 1958, International Algebraic Language

• 1959, Algorithmic Language, Van Wijngaarden and Dijkstra join

• 1960 editor of Algol 60 report

• Separation of hardware and software Algol 68

IFIP Working Group 2.1 taking the lead

Starts formal language theory (Chomsky’s universal grammar)

Van Wijngaarden grammars

Reasoning about language and programs

Some achievements

1958 started Nederlands RekenMachine Genootschap  Nederlands Genootschap voor Informatica

1959 started International Federation for Information Processing

1961 - 1980 Director of Mathematical Centre

1952 - 1981 Professor Numerical Mathematics at UvA PhD students

1956 1958 Nicolaas de Troye 1959 Edsger Dijkstra 1960 Guus Zoutendijk 1964 Jacob Zonneveld 1967 Jaco de Bakker 1968 Reinder van de Riet 1968 Barry Mailloux 1969 Jacobus Verhoeff 1970 Hugo Brandt Corstius 1971 Maarten van Emden 1974 Peter van Emde Boas 1976 Herman te Riele 1982 Dick Grune PhD students

1956 Willem van der Poel 1958 Nicolaas de Troye 1959 Edsger Dijkstra 1960 Guus Zoutendijk 1964 Jacob Zonneveld 1967 Jaco de Bakker 1968 Reinder van de Riet 1968 Barry Mailloux 1969 Jacobus Verhoeff 1970 Hugo Brandt Corstius 1971 Maarten van Emden 1974 Peter van Emde Boas 1976 Herman te Riele 1982 Dick Grune PhD students

1956 Willem van der Poel 1958 Nicolaas de Troye 1959 Edsger Dijkstra 1960 Guus Zoutendijk 1964 Jacob Zonneveld 1967 Jaco de Bakker 1968 Reinder van de Riet 1968 Barry Mailloux 1969 Jacobus Verhoeff 1970 Hugo Brandt Corstius 1971 Maarten van Emden 1974 Peter van Emde Boas 1976 Herman te Riele 1982 Dick Grune PhD students

1956 Willem van der Poel 1958 Nicolaas de Troye 1959 Edsger Dijkstra 1960 Guus Zoutendijk 1964 Jacob Zonneveld 1967 Jaco de Bakker 1968 Reinder van de Riet 1968 Barry Mailloux 1969 Jacobus Verhoeff 1970 Hugo Brandt Corstius 1971 Maarten van Emden 1974 Peter van Emde Boas 1976 Herman te Riele 1982 Dick Grune

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