Calvin Mooers

Calvin Northrup Mooers
Born	1919
Died	1 December 1994 Cambridge, Massachusetts
Nationality	American
Occupation	Computer Scientist

Calvin Northrup Mooers (1919 – December 1, 1994), was an American computer scientist known for his work in information retrieval and for the programming language TRAC.

Mooers was a native of Minneapolis, Minnesota, attended the University of Minnesota, and received a bachelor's degree in mathematics in 1941. He worked at the Naval Ordnance Laboratory from 1941 to 1946, and then attended the Massachusetts Institute of Technology, where he earned a master's degree in mathematics and physics. At M.I.T. he developed a mechanical system using superimposed codes of descriptors for information retrieval called . He founded the Zator Company in 1947 to market this idea, and pursued work in information theory, information retrieval, and artificial intelligence.

He coined the term "information retrieval" using it first in a conference paper presented in March 1950. See also a short paper published later that year from Mooers.

He coined "Mooers' Law" (not to be confused with Moore's Law) and its corollary in 1959:

He founded the Rockford Research Institute in 1961, where he developed the TRAC programming language, and attempted to control its distribution and development using trademark law and a unique invocation of copyright. (At the time patent law would not allow him to control what he saw as his intellectual property and profit from it.) The trademark strategy was later used by Ada.

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