CD Players

CD Players

CDs are small plastic discs on which sound, especially music, can be recorded. CDs can also be used to store information which can be read by a computer. CD is an abbreviation for 'compact disc'.

The fundamental job of the CD player is to focus the laser on the track of bumps. The laser beam passes through the polycarbonate layer, reflects off the aluminum layer and hits an opto-electronic device that detects changes in light. CD players and "CD drives" are both input devices; however, the "player" is a CD source for a stereo system, whereas a "drive" is a peripheral device for a computer. ... See music system and boombox. CD players play CD-DA music tracks, but may also play MP3 files and other compressed audio formats. A CD player is an electronic device that plays audio compact discs, which are a digital optical disc data storage format. CD players were first sold to consumers in 1982. CDs typically contain recordings of audio material such as music or audiobooks.