Shannon, Claude Elwood

Shannon, Claude Elwood
b. 30 April 1916 Gaylord, Michigan, USA
American mathematician, creator of information theory.
As a child, Shannon tinkered with radio kits and enjoyed solving puzzles, particularly crypto-graphic ones. He graduated from the University of Michigan in 1936 with a Bachelor of Science in mathematics and electrical engineering, and earned his Master's degree from the Massachusetts Institute of Technology (MIT) in 1937. His thesis on applying Boolean algebra to switching circuits has since been acclaimed as possibly the most significant this century. Shannon earned his PhD in mathematics from MIT in 1940 with a dissertation on the mathematics of genetic transmission.
Shannon spent a year at the Institute for Advanced Study in Princeton, then in 1941 joined Bell Telephone Laboratories, where he began studying the relative efficiency of alternative transmission systems. Work on digital encryption systems during the Second World War led him to think that just as ciphers hide information from the enemy, "encoding" information could also protect it from noise. About 1948, he decided that the amount of information was best expressed quantitatively in a two-value number system, using only the digits 0 and 1. John Tukey, a Princeton colleague, named these units "binary digits" (or, for short, "bits"). Almost all digital computers and communications systems use such on-off, or two-state logic as their basis of operation.
Also in the 1940s, building on the work of H. Nyquist and R.V.L. Hartley, Shannon proved that there was an upper limit to the amount of information that could be transmitted through a communications channel in a unit of time, which could be approached but never reached because real transmissions are subject to interference (noise). This was the beginning of information theory, which has been used by others in attempts to quantify many sciences and technologies, as well as subjects in the humanities, but with mixed results. Before 1970, when integrated circuits were developed, Shannon's theory was not the preferred circuit-and-transmission design tool it has since become.
Shannon was also a pioneer in the field of artificial intelligence, claiming that computing machines could be used to manipulate symbols as well as do calculations. His 1953 paper on computers and automata proposed that digital computers were capable of tasks then thought exclusively the province of living organisms. In 1956 he left Bell Laboratories to join the MIT faculty as Professor of Communications Science.
On the lighter side, Shannon has built many devices that play games, and in particular has made a scientific study of juggling.
Principal Honours and Distinctions
National Medal of Science. Institute of Electrical and Electronics Engineers Medal of Honor, Kyoto Prize.
His seminal paper (on what has subsequently become known as information theory) was entitled "The mathematical theory of communications", first published in Bell System Technical Journal in 1948; it is also available in a monograph (written with Warren Weaver) published by the University of Illinois Press in 1949, and in Key Papers in the Development of Information Theory, ed. David Slepian, IEEE Press, 1974, 1988. For readers who want all of Shannon's works, see N.J.A.Sloane and A.D.Wyner, 1992, The
Collected Papers of Claude E.Shannon.

Biographical history of technology. - Taylor & Francis e-Librar. . 2005.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Shannon , Claude Elwood — (1916–) American mathematician Born in Gaylord, Michigan, Shannon graduated from the University of Michigan in 1936. He later worked both at the Massachusetts Institute of Technology and the Bell Telephone Laboratories. In 1958 he returned to MIT …   Scientists

  • Shannon, Claude Elwood — ▪ 2002       American mathematician and computer scientist (b. April 30, 1916, Petoskey, Mich. d. Feb. 24, 2001, Medford, Mass.), laid the theoretical foundations for modern mass communications and came to be regarded as the “father of the… …   Universalium

  • Shannon, Claude (Elwood) — born April 30, 1916, Petoskey, Mich., U.S. died Feb. 24, 2001, Medford, Mass. U.S. electrical engineer. Shannon earned a Ph.D. in mathematics from MIT in 1940. He had a long career as a research mathematician at Bell Laboratories (1941–72) and as …   Universalium

  • Shannon, Claude (Elwood) — (30 abr. 1916, Petoskey, Mich., EE.UU.–24 feb. 2001, Medford, Mass.). Ingeniero eléctrico estadounidense. Shannon obtuvo un Ph.D. en matemática en el MIT en 1940. Tuvo una larga carrera como investigador matemático en los Laboratorios Bell… …   Enciclopedia Universal

  • Claude Elwood Shannon — (* 30. April 1916 in Petoskey, Michigan; † 24. Februar 2001 in Medford, Massachusetts) war ein amerikanischer Mathematiker und Elektrotechniker. Er gilt als Begründer der Informationstheorie. Inhaltsverzeichnis 1 Leben 2 Werk …   Deutsch Wikipedia

  • Claude Elwood Shannon — Claude Shannon Claude Shannon Nom de naissance Claude Elwood Shannon Naissance 30 avril 1916 Gaylord, Michigan, États Unis Décès 24 février 2001 (à 84 ans) Nationalité …   Wikipédia en Français

  • Claude Elwood Shannon — (Míchigan, 30 de abril de 1916 24 de febrero de 2001), ingeniero electrónico y matemático estadounidense, recordado como «el padre de la teoría de la información». Contenido 1 Biografía 2 Referencias …   Wikipedia Español

  • Shannon, Claude — ▪ American engineer in full  Claude Elwood Shannon  born April 30, 1916, Petoskey, Michigan, U.S. died February 24, 2001, Medford, Massachusetts       American mathematician and electrical engineer who laid the theoretical foundations for digital …   Universalium

  • Claude Elwood Shannon — noun United States electrical engineer who pioneered mathematical communication theory (1916 2001) • Syn: ↑Shannon, ↑Claude Shannon, ↑Claude E. Shannon • Instance Hypernyms: ↑engineer, ↑applied scientist, ↑technologist …   Useful english dictionary

  • Claude Shannon — Claude Elwood Shannon (1916 2001) Born April …   Wikipedia

  • Claude Shannon — Claude Elwood Shannon (* 30. April 1916 in Petoskey, Michigan; † 24. Februar 2001 in Medford, Massachusetts) war ein amerikanischer Mathematiker. Er gilt als Begründer der Informationstheorie. Inhaltsverzeichnis 1 Biographie 2 Siehe auch …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”