compact disc
NounOpen English WordNet
Noun (1)
- a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laserSynonyms: compact diskCDType of optical disk, recordingKinds CD-R, audio CD, CD-ROM
What does it mean? Question 1 of today’s quiz
Webster's Dictionary (1913)
a disk-shaped optical data storage medium approximately 4-3/4 in. in diameter, which stores binary data as microscopic nonreflective holes or pits in an otherwise reflective surface, and is recorded and played back by rotation in an electronic device containing a laser. It is often referred to by its abbreviation CD. It is a type of optical data storage medium. Compact disks are used for recordings of music as well as of data for computer applications. Syn. — CD.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54 · with additions: +PJC, WordNet 1.5
Free On-line Dictionary of Computing
<storage> (CD) (Not "disk", this spelling is part of the standard).
A 4.72 inch disc developed by Sony and Philips that can store, on the same disc, still and/or moving images in monochrome and/or color; stereo or two separate sound tracks integrated with and/or separate from the images; and digital program and information files.
The same fabrication process is used to make both audio CDs and CD-ROMs for storing computer data, the only difference is in the device used to read the CD (the player or drive).
CD Information Center (http://cd-info.com/cd-info/CDInfoCenter.html).
(1999-06-23)