A CD player is an electronic device used to play music CDs. CDs, or compact discs, are round discs about the size of a vinyl record that store digital music. They were introduced in 1982 and quickly replaced cassette tapes as the most popular format for listening to music.

CD players have a tray that opens up to insert a CD. They usually have a digital display that shows the artist, album, and track information. They also have buttons to control playback, such as play, pause, skip, and repeat. Some CD players also have a built-in amplifier and speaker, which …