The computer mouse is an input device that uses a graphical user interface. Computers that incorporate the graphical user interface into their system are able to use the computer mouse to maneuver around the computers different applications. The mouse is used in many different applications including engineering and computer games. When using the computer mouse with the graphical user interface you move the mouse along a flat level surface. The arrow on the computer monitor will move with the movements created by the mouse. Clicking the mouse button will allow for certain programs or operations to happen. Douglas C. Engelbart is the first person to develop the origi