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digital versatile disc

(Encyclopedia)digital versatile disc or digital video disc (DVD), a small plastic disc used for the storage of digital data. The successor media to the compact disc (CD), a DVD can have more than 100 times the stor...

compact disc

(Encyclopedia)compact disc (CD), a small plastic disc used for the storage of digital data. As originally developed for audio systems, the sound signal is sampled at a rate of 44,100 times a second, then each sampl...

digital circuit

(Encyclopedia)digital circuit, electronic circuit that can take on only a finite number of states. That is contrasted with analog circuits, whose voltages or other quantities vary in a continuous manner. Binary (tw...

slipped disc

(Encyclopedia)slipped disc, rupture or herniation of an intervertebral disc. These discs separate and cushion the vertebrae, the segments of the spinal column. They are composed of an outer rim of fibrous connectiv...

laser disc

(Encyclopedia)laser disc: see videodisc.

digital art

(Encyclopedia)digital art, contemporary art in which computer technology is used in a wide variety of ways to make distinctive works. Digital art was pioneered in the 1970s but only came into its own as a viable ar...

DVD-ROM

(Encyclopedia)DVD-ROM: see digital versatile disc.

digital radio

(Encyclopedia)digital radio, audio broadcasting in which an analog audio signal is converted into a digital signal before being transmitted; also known as digital audio broadcasting (DAB) and high-definition radio....

DVD

(Encyclopedia)DVD and DVD-ROM: see digital versatile disc. ...

videodisc

(Encyclopedia)videodisc or videodisk, disk used with a special player and television to reproduce both pictures and sound. A videodisc player cannot record television programs off the air for later playback, unlike...