Explain the uses of thumbwheels two thumbwheels are usually, Ask an Expert

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Explain the uses of thumbwheels

Two thumbwheels are usually required to control the screen cursor in its horizontal and vertical position respectively.

As the name implies, a trackball is a ball that can be rotated with the fingers or palm of the hand to produce screen-cursor movement. Potentiometers, attached to the ball, are used to measure the direction and amount of rotation. Trackballs are often mounted on keyboards or other devices such as the Z mouse as explained earlier.

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M9580936

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