Compact Disc's (CD's) are a part of everyday life, they are everywhere. CD's were first introduced in the early 1980's as a convienient way to store music. Now they are mainly used to hold music, data or computer software. CD's have become the standard medium for distributing large quantities of information in a small, extremely cheap, reliable and easy to manufacture package.
Compact Disc's
A CD is just a simple piece of plastic, about 1.2 millimeters thick. The main part of a CD is made up of an injection-molded piece of clear polycarbonate plastic. …
