An input device which comprises of an exposed protruding ball held by a socket…
2023
An input device which comprises of an exposed protruding ball held by a socket having sensors for detecting ball's rotation for capturing input is:
- A.
(1) Touchpad
- B.
(2) Track ball
- C.
(3) Pointer
- D.
(4) Sensor ball
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Correct answer: B
Sensors in the socket detect the ball's rotation and convert it into cursor movement.
Contrast: A touchpad is a flat touch-sensitive surface (not a protruding ball); 'pointer' is a generic term for the on-screen cursor; 'sensor ball' is not the standard name.