A new device is helping computers provide great amounts of informatio

The device is the compact disc or C

It was invented several years ag

to replace music records made of plasti

A CD is played on a machine that uses laser lig

to reproduce the musi

It has become popular in the recording industr

because it makes music sound so goo

CDs are used with computer

Computer experts have found that CDs can hold a great amount of informatio

and publishers are beginning to produce educational materials

using CD and computer technolog