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Atanasoff, John Vincent

(Encyclopedia)Atanasoff, John Vincent, 1903–1995, inventor of the digital computer, b. Hamilton, N.Y., grad. Univ. of Florida (B.S., 1925), Iowa State College (M.S., 1926), Univ. of Wisconsin (Ph.D., 1930). While...

tape recorder

(Encyclopedia)CE5 Magnetic tape-recording system tape recorder, device for recording and replaying of sound, video, and digital information on plastic (usually polyester) or paper tape. The tape is coated with ...

cryptography

(Encyclopedia)cryptography krĭptŏgˈrəfē [key] [Gr.,=hidden writing], science of secret writing. There are many devices by which a message can be concealed from the casual reader, e.g., invisible writing, but t...

handheld

(Encyclopedia)handheld: see personal digital assistant. ...

computer graphics

(Encyclopedia)computer graphics, the transfer of pictorial data into and out of a computer. Using analog-to-digital conversion techniques, a variety of devices—such as curve tracers, digitizers, and light pens—...

integrated circuit

(Encyclopedia)integrated circuit (IC), electronic circuit built on a semiconductor substrate, usually one of single-crystal silicon. The circuit, often called a chip, is packaged in a hermetically sealed case or a ...

radio

(Encyclopedia)CE5 A. AM transmitter B. AM receiver radio, transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially...

MacKenzie, Sir Compton

(Encyclopedia)MacKenzie, Sir Compton, 1883–1972, English author, b. West Hartelpool, Durham, educated at Oxford. In Apr., 1923, he founded the Gramophone, a periodical devoted to reviewing recordings. A prolific ...

Fitch, Clyde

(Encyclopedia)Fitch, Clyde (William Clyde Fitch), 1865–1909, American dramatist, b. Elmira, N.Y. An extremely prolific and versatile playwright, he wrote over 36 original plays, including melodramas, farces, soci...

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