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Pointing device

From Academic Kids

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Apple_mouse_Pro.jpg
An Apple pro mouse

A pointing device is any computer hardware component that allows a user to input spatial data to a computer. CAD systems and graphical user interfaces (GUI) allow the user to control and provide data to the computer using physical "gestures" - point, click, and drag - typically by moving a hand-held mouse across the surface of the physical desktop and activating switches on the mouse. Movements of the pointing device are echoed on the screen by movements of the mouse pointer and other visual changes.

While the most common pointing device by far is the mouse, other kinds include trackball, touchpad, pointing stick, lightpen, joystick, head pointer, eye tracking devices, various kinds of digitizing tablets which use a stylus, and even a special "data glove" that translates the user's movements to computer gestures.

See also list of input devices.

"Pointing device" can also refer to a special "stick" (sometimes telescopic, to reduce the length when not in use), or a lamp with a narrow light beam that is pointed at a map, blackboard, slide screen, movie screen, etc.; sometimes the light is in the form of an arrow.

This article was originally based on material from the Free On-line Dictionary of Computing, which is licensed under the GFDL.
fr:Dispositif de pointage

ja:ポインティングデバイス pl:Urządzenie wskazujące

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