What is a Mouse

A mouse is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position.

There are three basic types of mice: mechanical:Has a rubber or metal ball on its underside that can roll in all directions. Mechanical sensors within the mouse detect the direction the ball is rolling and move the screen pointer accordingly. optomechanical:Same as a mechanical mouse, but uses optical sensors to detect motion of the ball. optical:Uses a laser to detect the mouse's movement. You must move the mouse along a special mat with a grid so that the optical mechanism has a frame of reference. Optical mice have no mechanical moving parts. They respond more quickly and precisely than mechanical and optomechanical mice, but they are also more expensive. Mice connect to PCs in one of several ways: Serial mice connect directly to an RS-232C serial port or a PS/2 port. This is the simplest type of connection. PS/2 mice connect to a PS/2 port. USB mice.