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About Computer Mice and Pointing Devices
Computer mice and pointing devices cover industrial computer peripherals for controlling cursor and other features of visual computer interfaces like WindowsTM. Pointing devices are available in a variety of forms such as foot mouse, standard computer mouse, mouse keypad, light pen, joystick, touchpad, and trackball. A foot mouse is a completely foot-operated pointing device usually consisting of two pads. A standard mouse is a desktop device that uses a ball and/or an optical sensor to sense the movement of the operator's hand across the desktop. The Microsoft 2-button mouse and the Logitech 3-button mouse are well known example of these types of products for use in office or commercial type applications. These "standard" type mice often are not ruggedized enough for industrial or kiosk type applications. Some of these devices may also utilize a trackball. A mouse keypad is a small keypad module with keys to control cursor movement. A light pen is an input device that utilizes a light-sensitive detector to select objects on a display screen. A light pen is similar to a mouse, except that with a light pen the pointer can be moved and objects can be selected on the display screen by directly pointing to the objects with the pen. A joystick is a lever that moves in all directions and controls the movement of a pointer or some other display symbol. A joystick is similar to a mouse, except that with a mouse the cursor stops moving as soon as the mouse is stopped. With a joystick, the pointer continues moving in the direction that the joystick is pointing. To stop the pointer, it must be returned to its upright position.
