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Which of the following is an input device used to enter motion data in computers or other electronic devices ? 1. Monitor 2. Trackball 3. Plotter 4. Joystick

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Which of the following is an input device used to enter motion data in computers or other electronic devices ? 1. Monitor 2. Trackball 3. Plotter 4. Joystick

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Answer: Trackball

Explanation:

A trackball is a pointing input device. It consists of a ball held by a socket containing sensors to detect a rotation of the ball about two axes. The user rolls the ball with the thumb, fingers or the palm of the hand to move a cursor.

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