A Joystick is an input device which reports the angle it is tilted by the user to its controlling station as a signal to control certain operations. The stick is pivoted on a platform that has the necessary circuitry to detect the direction. The input may be taken using analog potentiometers or simple digital switches with logic defined for each state. These are widely used in Military air-crafts and choppers, robotic control arms and computer video games as a means of providing easy motion to the controlled device.
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