... computers have keyboard port, video port, serial ports, parallel port, Some also have a mouse port If there is no mouse port, a serial mouse must be used The mouse port and the keyboard look ... your working area or a mousemat When the mouse is moved over that surface, the ball rolls The balls movements up and down, and left and right, turn the two axles inside A mouse is a hardware device ... the The mouse contains a a rubber coated There are axles inside the mouse and two interrupter wheels When you move the mouse The ball There are sections on the keyboard The mouse moves...