Claude Shannon

Father of information theory and founder of the digital age

Claude Elwood Shannon (1916–2001) was an American mathematician, electrical engineer, and cryptographer who founded information theory.^[1] Robert G. Gallager, an electrical engineer, described Shannon's 1948 paper "A Mathematical Theory of Communication" as a "blueprint for the digital era".^[2]

Quick Facts

Born

30 April 1916

Birthplace

Petoskey, Michigan, U.S.

Died

24 February 2001

Place of death

Medford, Massachusetts, U.S.

Fields

Mathematics
computer science
electronic engineering
artificial intelligence

Workplaces

Bell Labs
Massachusetts Institute of Technology
Institute for Advanced Study

Doctoral advisor

Frank Lauren Hitchcock

Doctoral students

Elwyn Berlekamp
Danny Hillis
Leonard Kleinrock
Ivan Sutherland
Bert Sutherland

Facts from the source article.

Life and work

During World War II, Shannon worked on cryptography and fire-control systems at Bell Labs.^[3][4] In 1948, he published "A Mathematical Theory of Communication," which provided a general model of communication and introduced the concept of channel capacity.^[5][4] Shannon joined the MIT faculty in 1956 and taught there until 1978.^[6] He designed and built Theseus, an early learning machine that could navigate a maze by trial and error.^[7][8]

Shannon also co-organized the 1956 Dartmouth workshop, considered the founding event of artificial intelligence.^[9] He developed Alzheimer's disease and died in 2001 at age 84.^[10][4] While a student at MIT, Shannon demonstrated that Boolean logic could be applied to electronic circuits, a concept that laid the groundwork for digital computing.^[8]

What the cited sources add

A 2019 MIT News article states that Shannon built the Theseus maze at home with his wife Betty, who was also a mathematician at Bell Labs.^[8] The same source notes that Theseus used telephone relay switches to "remember" its path through a 25-square maze.^[8] An MIT News obituary reports that Shannon was a distant relative of Thomas Edison.^[4] The obituary also states that Shannon received honorary degrees from Yale, Michigan, Princeton, and Oxford, among others.^[4]

A 2020 article by Tse explains that Shannon's key insight was modeling communication as a probabilistic problem of uncertainty.^[5] Tse further notes that Shannon's theory implies it is always optimal to encode any information into bits before transmission.^[5] The same article states that 5G standards use codes that achieve Shannon's theoretical speed limit.^[5]

References

Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: Atmar, "A Profoundly Repeated Pattern", Bulletin of the Ecological Society of America, 2001, p. 208–211; Tse, "How Claude Shannon Invented the Future", December 22, 2020; Roberts, "The Forgotten Father of the Information Age", April 30, 2016 (we also read that source) en.wikipedia.org
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: "Claude E. Shannon", IEEE Information Theory Society; ; "Claude Shannon: Reluctant Father of the Digital Age", July 1, 2001; Goodman, "Claude Shannon: The Juggling Poet Who Gave Us the Information Age", Daily Beast, 2017-07-30; Goodman, "Genius in Training", Alumni Association of the University of Michigan, 2018; (original not read by us) en.wikipedia.org
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: Gertner, "The idea factory: Bell Labs and the great age of American innovation", Penguin Books, 2013, p. 118 (original not read by us) en.wikipedia.org
"MIT Professor Claude Shannon dies; was founder of digital communications", MIT News office, February 27, 2001. facts only, no text reused. web.mit.edu
Tse, "How Claude Shannon Invented the Future", December 22, 2020. facts only, no text reused. quantamagazine.org
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: Smith, "Claude Shannon: Digital Pioneer's Work Still Reverberates", MIT Alumni Association, 2011-08-15 (original not read by us) en.wikipedia.org
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: "Bell Labs Advances Intelligent Networks"; Klein, "Mighty mouse", MIT News, 2019, p. 6–7; "Bell Labs Advances Intelligent Networks" (we also read that source) en.wikipedia.org
Klein, "Mighty mouse", MIT News, 2019, p. 6–7. facts only, no text reused. technologyreview.com
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: McCarthy, "A Proposal for the Dartmouth Summer Research Project on Artificial Intelligence, August 31, 1955", AI Magazine, 2006-12-15, p. 12; Solomonoff, "The Meeting of the Minds That Launched AI", May 6, 2023 (original not read by us) en.wikipedia.org
Wikipedia, "Claude Shannon" (CC BY-SA 4.0), which cites: Weisstein, "Shannon, Claude Elwood (1916–2001)", World of Scientific Biography; "Claude Shannon – computer science theory", www.thocp.net (original not read by us) en.wikipedia.org

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Claude Shannon (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.