The
final piece of hardware you need to know about is probably the most
important piece - also some would say, the most difficult to
use. I am talking about the mouse. It's called a mouse because
it is small, not very tall, usually white in colour and has a very
long tail - if you follow the tail you'll find it goes all the way
to the back of the computer. With the mouse we tell the computer what
to do. Not by talking to it, but by moving it around but we'll come
onto that shortly.