In computing, a mouse is a pointing device that functions by detecting two dimensional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the users hands, with one or more buttons. It sometimes features other elements, such as mouse wheel, which allow the user to perform various system dependent operations, or extra buttons or features can add more control or dimensional input. The mouse motion typically translates into the motion of a pointer on a display, which allows for fine control of a Graphical User Interface.
The name mouse, originated at the Stanford Research Institute, derives from the resemblance of early models ( which had a cord attached to the rear part of the device, suggesting the idea of a tail ) to the common mouse.
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