Lee Edward McMahon (October 24, 1931[2] – February 15, 1989[3]) was an American computer scientist.
Lee Edward McMahon | |
|---|---|
 McMahon at Bell Labs in 1966 | |
| Born | October 24, 1931 |
| Died | February 15, 1989 (aged 57) |
| Nationality | American |
| Alma mater | Harvard University |
| Known for | sed, McMahon system tournament |
| Spouse | Helen G McMahon |
| Scientific career | |
| Fields | Computer science |
| Institutions | Bell Labs[1] |
| Thesis | Grammatical analysis as a part of understanding a sentence (1963) |
Family and education
editMcMahon was born in St. Louis, Missouri, to father Leo E. McMahon and mother Catherine McCarthy. He grew up in St. Louis and attended St. Louis University High School.[4] In 1955, he received his bachelor's degree summa cum laude from St. Louis University.[5] McMahon was awarded a regular graduate fellowship from the St. Louis University for study in psychology at Harvard University, where he then obtained a Ph.D. in psychology.[6][7] His Ph.D. thesis at Harvard University was published in 1963 with the title "Grammatical analysis as a part of understanding a sentence".
He was married to Helen G McMahon, and they had two children, Michael and Catherine.[1]
Bell Labs
editMcMahon worked for Bell Labs from 1963 up until his death in 1989. He worked initially as a Linguistics Researcher and focussed around a language called FASE (Fundamentally Analyzable Simplified English) with the goal of improving communication between humans and computers.[8]
McMahon officially joined the Bell Labs Computing Research Center in 1975.[1]
A project which attempted to clarify the authorship of The Federalist Papers connected him to Robert Morris and began his involvement with early Unix development.[9]
McMahon is best known for his contributions to early versions of the Unix operating system, in particular the sed stream editor.[10] McMahon contributed to the development of comm, qsort, grep, index, cref, cu, and Datakit.[11]
McMahon's system tournament
editMcMahon worked on the creation of a pairing system to go together with Bob Ryder of Bell Labs in the early 1960s.[12]
The system was widely used in go tournaments, for example in the U.S. Championship tournaments of 1986.[13]
References
edit- ^ a b c "Lee E. Mc Mahon". Madison Eagle. 23 February 1989. Retrieved 20 March 2021 – via github.com.
- ^ "NARA AAD Display Partial Records". archives.gov. Archived from the original on 20 March 2021. Retrieved 20 March 2021.
- ^ "NARA AAD Display Partial Records". archives.gov. Archived from the original on 20 March 2021. Retrieved 20 March 2021.
- ^ "SLUH Alumni In Memoriam". sluh.org. Retrieved 20 March 2021.
- ^ "1650 Will Receive St. Louis U. Degrees at Kiel Auditorium Exercises Tuesday". St. Louis Globe-Democrat. 5 June 1955. Retrieved 20 March 2021 – via Newspapers.com.
- ^ "FELLOWSHIPS GIVEN TO 12 AT ST.LOUIS U." St. Louis Post-Dispatch. 20 March 1960. Retrieved 20 March 2021 – via Newspapers.com.
- ^ "Doctoral Alumni". harvard.edu. Retrieved 20 March 2021.
- ^ "English for Computers". Bell Telephone Magazine Summer 1966. 1966. Retrieved 20 March 2021 – via archive.org.
- ^ "Unix: An Oral History". princeton.edu. Archived from the original on 3 Aug 2020. Retrieved 20 March 2021.
- ^ In the Beginning: Unix at Bell Labs, retrieved 2008-11-21
- ^ McIlroy, M. D. (1987). A Research Unix reader: annotated excerpts from the Programmer's Manual, 1971–1986 (PDF) (Technical report). CSTR. Bell Labs. 139.
- ^ "McMahon Pairing". senseis.xmp.net. Archived from the original on 30 November 2020. Retrieved 20 March 2021.
- ^ Terry Benson and R.A. McCallister (1986). "RANKA Yearbook 1986" (PDF). Go in the United States and the American Go Association. Retrieved 20 March 2021.
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