This article is regarding to computer input device. For the animal, see mouse. For other uses, see mouse (disambiguation).

A contemporary computer mouse, with the most common normal features: two buttons and a scroll wheel. In computing, a mouse (plural mice or mouses) functions as a pointing device by detect two-dimensional motion relative to its supporting surface. Physically, a mouse consists of a small case, held beneath of the user's hands, with one or more buttons. It sometimes features other elements, such as "wheels", which let the user to perform various system-dependent operations, or extra buttons or features can add more control or dimensional input. The mouse's motion classically translates into the motion of a pointer on a display, which allows for fine control of a Graphical User Interface.

The name mouse, originate at the Stanford Research Institute, derives from the similarity 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.