Mouse

A mouse is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. It works with numerical data to move a cursor on a computer screen. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons. It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input. The mouse's motion typically translates into the motion of a cursor on a display, which allows for fine control of a graphical user interface.

Workings
Mice have either a ball built into it under the mouse itself or a laser, both of which detect movement and translate it into movement onto the monitor. The ball underneath for old-fashioned mice is essentially a Trackball.

(Please note that this page is about mice in IPT. Please refrain from adding information or too many pictures relating to gaming mice, as they are not suitable material for this wiki.)