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The mouse is one
basic way that you communicate with your computer
about what to do next. A mouse has three basic features.
It has a left button, a right button, and some way
of moving the pointer on the screen. Most mice have
a ball on the bottom, which tells your computer
which way to move the pointer (Some mice don’t use
a ball, but the principle is the same.). There are
also other types of pointing devices like joy sticks
and track balls. They have at least two buttons,
but the way they point is a little different. Take
a look at the notebook photo below. In that photo,
there is a little blue knob that changes the location
of the pointer. It also has a touch pad. But, just
like a mouse, it still has a left and a right button.
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