What is the older input device called that uses a rotating ball to move the cursor?
AOptical mouse
BTouchpad
CJoystick
DTrackball
Explanation
– A trackball uses a rotating ball to move the cursor.
– The device itself stays still while the ball is turned.
– It has largely been replaced by the modern mouse.
Exam Relevance
- Topic: Input and Output Devices
- Subtopic: Input Devices
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