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![]() ![]() ![]() It is mainly used in Computer Aided Designing (CAD) and playing computer games. A joystick has a lever that can be tilted a few degrees (typically 60° ) in (usually) 4 directions. The function of a joystick is similar to that of the mouse. A trackball has a ball that can rotate any number of turns in any direction. The joystick can be changed in all four directions. The lower spherical ball moves in a socket. ![]() Joystick is a stick having a spherical ball as its both lower and upper ends as shown in fig.
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