A CD, also known as a compact disc, is a digital optical disc used to store digital data. It was first introduced in 1982. CDs are read by a laser and can hold up to 700 megabytes of data. They are still popular for storing music, movies, and other digital data.

What is the difference between CD and DVD?

There are many types of optical discs, but the two most common are CDs and DVDs. They both have their own unique purposes, and there are a few key differences between the two.

The main difference between CDs and DVDs is …