A) Trackwell
B) Trackboard
C) Trackball
D) Trackpoint
E) Trackpad
Correct Answer: C
Solution :
[c] Trackball is an upside-down mouse that rotates in place within a socket. The user rolls the ball to direct the cursor to the desired place on the screen and can click one of two buttons (like mouse buttons) near the trackball to select desktop objects or position the cursor for text entry.
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