A virus is a program that replicates itself. It cannot exist on its own so it attaches to another program, usually an executable one.

A worm is like a virusit also replicates itself.

More music fans than ever are looking to download music online.

However, many people become overwhelmed by their downloading choices - and are unsure which music solution will best fit

It can be estimated that millions of people around the world share music over a file-sharing network. For this article, I am addressing the issue in America mainly because I am not aware of the laws