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Niklaus Emil Wirth (born 15 February 1934) is a Swiss computer scientist, best known for designing several programming languages, including Pascal, and for pioneering several classic topics in software engineering. In 1984 he won the Turing Award, generally recognized as the highest distinction in computer science,[2][3] for developing a sequence of innovative computer languages.[4]

Contents

1 Biography 2 Programming languages 3 Notable publications 4 Wirth's law 5 Humor 6 See also 7 References 8 External links

Biography[edit] Wirth was born in Winterthur, Switzerland, in 1934. In 1959 he earned a degree in Electronics Engineering
Electronics Engineering
from the Swiss Federal Institute of Technology Zürich (ETH Zürich). In 1960 he earned an M.Sc.
M.Sc.
from Université Laval, Canada. Then in 1963 he was awarded a Ph.D. in Electrical Engineering and Computer Science
Computer Science
(EECS) from the University of California, Berkeley, supervised by the computer designer pioneer Harry Huskey. From 1963 to 1967 he served as assistant professor of Computer Science at Stanford University
Stanford University
and again at the University of Zurich. Then in 1968 he became Professor of Informatics at ETH Zürich, taking two one-year sabbaticals at Xerox PARC
Xerox PARC
in California
California
(1976–1977 and 1984–1985). Wirth retired in 1999. In 2004, he was made a Fellow of the Computer History Museum
Computer History Museum
"for seminal work in programming languages and algorithms, including Euler, Algol-W, Pascal, Modula, and Oberon."[5] Programming languages[edit]

Niklaus Wirth, 1969, sitting on a spaghetti chair

Wirth was the chief designer of the programming languages Euler, Algol W, Pascal,[6] Modula, Modula-2, Oberon, Oberon-2, and Oberon-07, and Component Pascal. He was also a major part of the design and implementation team for the Lilith and Oberon operating systems, and for the Lola digital hardware design and simulation system. He received the ACM Turing Award
Turing Award
for the development of these languages in 1984 and in 1994 he was inducted as a Fellow of the ACM. He designed the simple programming language PL/0 to illustrate compiler design. It has formed the basis for many university compiler design classes. Notable publications[edit] His book, written jointly with Kathleen Jensen, The Pascal User Manual and Report, served as the basis of many language implementation efforts in the 1970s and 1980s in the United States and across Europe. His article Program Development by Stepwise Refinement, about the teaching of programming, is considered to be a classic text in software engineering. In 1975 he wrote the book Algorithms + Data Structures = Programs, which gained wide recognition. Major revisions of this book with the new title Algorithms + Data Structures were published in 1985 and 2004. The examples in the first edition were written in Pascal. These were replaced in the later editions with examples written in Modula-2 and Oberon respectively. His textbook, Systematic Programming: An Introduction, was considered a good source for students who wanted to do more than "just coding". Regarded as a challenging text to work through, it was sought as imperative reading for those interested in numerical mathematics.[7]

Signature of Niklaus Wirth

In 1992 he published (together with Jürg Gutknecht) the full documentation of the Oberon OS.[8]. A second book (together with Martin Reiser) was intended as a programmers guide.[9] Wirth's law[edit] Main article: Wirth's law In 1995, he popularized the adage now known as Wirth's law: "Software is getting slower more rapidly than hardware becomes faster." In his 1995 paper A Plea for Lean Software
Software
he attributes it to Martin Reiser.[10] Humor[edit] Wirth has reportedly told the joke that, because Europeans pronounce his name properly ("VEER-t"), while Americans pronounce it as "nickel's worth", he is called by name in Europe and called by value in America.[11][12] See also[edit]

Extended Backus–Naur Form Wirth syntax notation Bucky bit Wirth–Weber precedence relationship List of pioneers in computer science

References[edit]

^ Niklaus Wirth
Niklaus Wirth
2004 Fellow ^ Dasgupta, Sanjoy; Papadimitriou, Christos; Vazirani, Umesh (2008). Algorithms. McGraw-Hill. ISBN 978-0-07-352340-8. , p. 317. ^ Bibliography of Turing Award
Turing Award
lectures, DBLP ^ http://amturing.acm.org/award_winners/wirth_1025774.cfm ^ CHM. " Niklaus Wirth
Niklaus Wirth
— CHM Fellow Award Winner". Retrieved December 2, 2017.  ^ Petzold, Charles (1996-09-09). "Programming Languages: Survivors and Wannabes". The New York Times. ISSN 0362-4331. Retrieved 2018-03-08.  ^ Abrahams, Paul (July 1974). "Systematic Programming: An Introduction by Niklaus Wirth". Mathematics of Computation. American Mathematical Society. 28 (127): 881–883. JSTOR 2005728.  ^ N. Wirth and J. Gutknecht: Project Oberon - The Design of an Operating System and Compiler
Compiler
Addison-Wesley/ACM Press (1992) ISBN 0-201-54428-8. Out of print. Online version of a second edition. ^ M. Reiser and N. Wirth: Programming in Oberon Addison-Wesley/ACM Press (1992) ISBN 0-201-56543-9. Out of print. ^ Niklaus Wirth
Niklaus Wirth
(February 1995). "A Plea for Lean Software". Computer. 28 (2): 64–68. doi:10.1109/2.348001. Retrieved 2007-01-13.  ^ " Niklaus Wirth
Niklaus Wirth
- Free Pascal wiki". wiki.freepascal.org. Retrieved 2016-09-28.  ^ Phipps, Clay. "Niklaus Wirth". Retrieved 28 September 2016. 

External links[edit]

Wikimedia Commons has media related to Niklaus Wirth.

Wikiquote has quotations related to: Niklaus Wirth

Biography at ETH Zürich. Personal home page at ETH Zürich. Niklaus Wirth
Niklaus Wirth
at DBLP Bibliography Server Niklaus E. Wirth at ACM. Wirth, Niklaus (April 1971). "Program Development by Stepwise Refinement". Communications of the ACM. 14 (4): 221–7. doi:10.1145/362575.362577.  Wirth, N. (1974). "On the Design of Programming Languages" (PDF). Proc. IFIP Congress 74: 386–393.  Turing Award
Turing Award
Lecture, 1984 Pascal and its Successors paper by Niklaus Wirth
Niklaus Wirth
– also includes short biography. A Few Words with Niklaus Wirth The School of Niklaus Wirth: The Art of Simplicity, by László Böszörményi, Jürg Gutknecht, Gustav Pomberger (editors). dpunkt.verlag / Morgan Kaufmann Publishers, 2000. ISBN 3-932588-85-1 / ISBN 1-55860-723-4. The book Compiler
Compiler
Construction The book Algorithms and Data Structures The book Project Oberon – The Design of an Operating System and Compiler. The book about the Oberon language and Operating System is now available as a PDF file. The PDF file has an additional appendix Ten Years After: From Objects to Components. Project Oberon 2013

v t e

A. M. Turing Award
Turing Award
laureates

1960s

Alan Perlis (1966) Maurice Vincent Wilkes (1967) Richard Hamming
Richard Hamming
(1968) Marvin Minsky
Marvin Minsky
(1969)

1970s

James H. Wilkinson (1970) John McCarthy (1971) Edsger W. Dijkstra
Edsger W. Dijkstra
(1972) Charles Bachman
Charles Bachman
(1973) Donald Knuth
Donald Knuth
(1974) Allen Newell / Herbert A. Simon
Herbert A. Simon
(1975) Michael O. Rabin
Michael O. Rabin
/ Dana Scott
Dana Scott
(1976) John Backus
John Backus
(1977) Robert W. Floyd (1978) Kenneth E. Iverson
Kenneth E. Iverson
(1979)

1980s

Tony Hoare
Tony Hoare
(1980) Edgar F. Codd
Edgar F. Codd
(1981) Stephen Cook
Stephen Cook
(1982) Ken Thompson
Ken Thompson
/ Dennis Ritchie
Dennis Ritchie
(1983) Niklaus Wirth
Niklaus Wirth
(1984) Richard Karp (1985) John Hopcroft
John Hopcroft
/ Robert Tarjan
Robert Tarjan
(1986) John Cocke (1987) Ivan Sutherland
Ivan Sutherland
(1988) William Kahan
William Kahan
(1989)

1990s

Fernando J. Corbató
Fernando J. Corbató
(1990) Robin Milner (1991) Butler Lampson (1992) Juris Hartmanis
Juris Hartmanis
/ Richard E. Stearns
Richard E. Stearns
(1993) Edward Feigenbaum
Edward Feigenbaum
/ Raj Reddy
Raj Reddy
(1994) Manuel Blum
Manuel Blum
(1995) Amir Pnueli
Amir Pnueli
(1996) Douglas Engelbart
Douglas Engelbart
(1997) Jim Gray (1998) Fred Brooks
Fred Brooks
(1999)

2000s

Andrew Yao
Andrew Yao
(2000) Ole-Johan Dahl / Kristen Nygaard
Kristen Nygaard
(2001) Ron Rivest
Ron Rivest
/ Adi Shamir
Adi Shamir
/ Leonard Adleman
Leonard Adleman
(2002) Alan Kay
Alan Kay
(2003) Vint Cerf
Vint Cerf
/ Bob Kahn
Bob Kahn
(2004) Peter Naur
Peter Naur
(2005) Frances E. Allen
Frances E. Allen
(2006) Edmund M. Clarke
Edmund M. Clarke
/ E. Allen Emerson / Joseph Sifakis (2007) Barbara Liskov
Barbara Liskov
(2008) Charles P. Thacker
Charles P. Thacker
(2009)

2010s

Leslie G. Valiant (2010) Judea Pearl
Judea Pearl
(2011) Shafi Goldwasser
Shafi Goldwasser
/ Silvio Micali
Silvio Micali
(2012) Leslie Lamport
Leslie Lamport
(2013) Michael Stonebraker
Michael Stonebraker
(2014) Martin Hellman / Whitfield Diffie
Whitfield Diffie
(2015) Tim Berners-Lee
Tim Berners-Lee
(2016) John L. Hennessy
John L. Hennessy
/ David Patterson (2017)

v t e

Software
Software
engineering

Fields

Computer programming Requirements engineering Software
Software
deployment Software
Software
design Software
Software
maintenance Software
Software
testing Systems analysis Formal methods

Concepts

Data modeling Enterprise architecture Functional specification Modeling language Orthogonality Programming paradigm Software Software
Software
archaeology Software
Software
architecture Software
Software
configuration management Software
Software
development methodology Software
Software
development process Software
Software
quality Software
Software
quality assurance Software
Software
verification and validation Structured analysis

Orientations

Agile Aspect-oriented Object orientation Ontology Service orientation SDLC

Models

Developmental

Agile EUP Executable UML Incremental model Iterative model Prototype model RAD UP Scrum Spiral model V-Model Waterfall model XP

Other

SPICE CMMI Data model ER model Function model Information model Metamodeling Object model Systems model View model

Languages

IDEF UML USL SysML

Software engineers

Victor Basili Kent Beck Grady Booch Fred Brooks Barry Boehm Peter Chen Danese Cooper Ward Cunningham Tom DeMarco Edsger W. Dijkstra Delores M. Etter Martin Fowler Adele Goldstine Margaret Hamilton C. A. R. Hoare Lois Haibt Mary Jean Harrold Grace Hopper Watts Humphrey Michael A. Jackson Ivar Jacobson Alan Kay Nancy Leveson Stephen J. Mellor Bertrand Meyer David Parnas Trygve Reenskaug Winston W. Royce James Rumbaugh Mary Shaw Peri Tarr Elaine Weyuker Niklaus Wirth Edward Yourdon

Related fields

Computer science Computer engineering Project management Risk management Systems engineering

Category Commons

Authority control

WorldCat Identities VIAF: 108127625 LCCN: n50013767 ISNI: 0000 0000 8405 6132 GND: 120777983 SUDOC: 032896301 BNF: cb123836887 (data) BIBSYS: 90051355 HDS: 31725 MGP: 61847 NDL: 00461229 SNAC: w62j7fg8 DBLP: w/NiklausWirth A

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