TheCodeBreakers
mathematical laws that govern systems designed to communicate
information. Originating in transmission problems of telephony and
telegraphy, it has grown to embrace virtually all information-processing
devices, from standard communications systems to electronic computers
and servo-mechanisms, and even the nerve networks of animals and
men. Its ideas have proved so suggestive that they have been adapted to
such fields as psychology, linguistics, molecular genetics, history,
statistics, and neurophysiology. Because of this fertility, and because of
its potential in helping to manage the information explosion of the 20th
century, information theory may eventually rank, Fortune magazine has
speculated, among the "enduring great" theories of man. The brilliant
mind that fathered it also sired its cryptologic applications.
Claude Elwood Shannon was born in Petoskey, Michigan, on April 30,
1916, and was raised in nearby Gaylord, a small town in the north-
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