joystick

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joystick

1 a vertical stick or lever that can be manipulated in various directions to control a cursor or other movements on a computer screen. It is used mainly in playing computer games.
2 a vertical stick or lever that can be manipulated in various directions to drive an electric wheelchair.

joystick

A pivoting electronic input device, used in assistive technology to register side-to-side, forward and backward, and diagonal movements, so that these can be processed. The stick may also include preprogrammed buttons that, when depressed, activate specific electronic commands or mechanical outputs.