Compact disc

From Conservapedia
This is an old revision of this page, as edited by Fantasia (Talk | contribs) at 03:13, 21 August 2007. It may differ significantly from current revision.

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

A compact disc or a CD is an optical storage device originally used for storing audio data. It was originally created in 1982, and until 1985, was only used for storing audio. Typically, they are 4.7 in (120 mm) in diameter and hold 700 megabytes. CDs today are also used for storing other digital information and are called CD-ROMs. In addition, CD-Rs and CD-RWs [1] allow consumers to write (and rewrite) their own information, usually with a personal computer.