The various types of flat, plastic circles that are thrown in various games (includingdisc golf) can all be calleddiscs. The type of flyingdiscused for a casual toss—and in the sport known asUltimate—is popularly known by the brand nameFrisbee. compact disc, disc jockey In the context o...
Compact discs sound better because they are produced digitally. In a computerlike process, musical sounds are assigned binary digital codes of 0s and 1s that are etched on a 4.7-inch-diameter plastic-and-aluminum disc. When the disc is played, a laser beam picks up the coded "pits" of ...