A computer mouse also called as pointing device is an input device that helps to point data on screen. It also helps to select, highlight content and drag-drop controls. The standard computer mouse have a left button, right button, and scroll bar wheel. In computer science, the fullform of mouse is A computer mouse is a device that allows users to control the cursor on a computer screen by moving it over a surface. Learn about the history, types, functions, and advantages of computer mouse, as well as its future trends. A mouse is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position. mouse, hand-controlled electromechanical device for interacting with a digital computer that has a graphical user interface. The mouse can be moved around on a flat surface to control the movement of a cursor on the computer display screen.