Barry J. Mailloux

{{Use dmy dates|date=May 2019|cs1-dates=y}}

{{Infobox scientist

| name = Barry James Mailloux

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| birth_date = {{Birth year|1939}} or {{Birth year|1940}}

| birth_place = Leamington, Ontario

| death_date = {{Death date and age |1982|05|26 |1940}}

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| other_names = BJ

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| fields = Computer science

| workplaces = Mathematisch Centrum
University of Alberta

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| education = University of Alberta (M.Sc., 1963)
Mathematisch Centrum (Ph.D., 1968)

| thesis1_title = Numerical Solution of Differential Equations

| thesis2_title = On the implementation of ALGOL 68

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| thesis1_year = 1963

| thesis2_year = 1969

| doctoral_advisor =

| academic_advisors = Adriaan van Wijngaarden

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| notable_students = Chris Thomson

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Barry James Mailloux (1940? – 26 May 1982) obtained his Master of Science (M.Sc.) in numerical analysis in 1963. From 1966, he studied at Amsterdam's Mathematisch Centrum under Adriaan van Wijngaarden, earning a Doctor of Philosophy (Ph.D.) in 1968.

{{Cite web |author=Daniel Boulet |date=10 October 2002 |url=https://everything2.com/index.pl?node_id=1371601 |title=Barry J. Mailloux |website=everything2 |access-date=10 May 2020}}

{{Cite book |last=Lindsey |first=C. H. |title=A History of ALGOL 68}}

{{Cite book |last=Bergin |first=Thomas J. |last2=Gibson |first2=Richard G. |date=1996 |title=History of Programming Languages |publisher=ACM Press |isbn=0-201-89502-1}}

{{Cite book |last=Smillie |first=Keith |date=December 1990 |title=The Department of Computing Science: The First Twenty-Five Years |publisher=University of Alberta}}

He was the "first et al editor" of the original Report on the Algorithmic Language ALGOL 68, and the Revised Report on the Algorithmic Language ALGOL 68.

He was a member of the International Federation for Information Processing (IFIP) IFIP Working Group 2.1,{{cite web |url=https://ifipwg21wiki.cs.kuleuven.be/IFIP21/Profile |title=Profile of IFIP Working Group 2.1 |last=Jeuring |first=Johan |last2=Meertens |first2=Lambert |author2-link=Lambert Meertens |last3=Guttmann |first3=Walter |date=2016-08-17 |website=Foswiki |access-date=2020-09-06}} which specified, maintains, and supports the programming languages ALGOL 60 and ALGOL 68.{{Cite web |url=https://ifipwg21wiki.cs.kuleuven.be/IFIP21/ScopeEtc |title=ScopeEtc: IFIP21: Foswiki |last=Swierstra |first=Doaitse |last2=Gibbons |first2=Jeremy |author2-link=Jeremy Gibbons |last3=Meertens |first3=Lambert |author3-link=Lambert Meertens |date=2011-03-02 |website=Foswiki |access-date=2020-09-06}}

In 1968, he returned to the University of Alberta as an assistant professor in the Department of Computing Science. His work on ALGOL 68 made the university a world center for ALGOL 68-related activity.

Mailloux's student Chris Thomson and friend Colin Broughton established Chion Corporation, which produced the Full Language Algol 68 Checkout Compiler (FLACC). FLACC proved Mailloux's contention that ALGOL 68 could indeed be implemented, contrary to the public complaints from some, such as Edsger Dijkstra.