The trackball is a pointing device that works like a mouse turned upside down.

Name: The trackball is a pointing device that works like a mouse turned upside down.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The trackball is a device that allows the user to move the cursor around the screen by rolling a ball with their fingers instead of moving the entire device. This is similar to the way a mouse works, but with the mechanism flipped upside down.

The Trackball Is a Pointing Device That Works Like a Mouse