The cassette and CD player are both music players that use tapes or CDs to play music. They are both portable devices that can be used anywhere. The cassette player was the first portable music player. It was invented in 1963 by Philips. The CD player was invented in 1982 by Sony.

The cassette player uses a cassette tape to play music. The cassette tape is a thin tape that has two recording tracks on it. One track is for the left channel and the other track is for the right channel. The cassette player has a rotating head that …