COMPUTER ARCHITECTURE
INPUTOUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A trackball is an input device which is usd to control the positions of a cursor.
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true
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false
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axis, similar to an upside-down mouse. As the user rolls the ball with a thumb, fingers, or palm the pointer on the screen will also move.
Detailed explanation-2: -Trackballs are still used as separate input devices with standard desktop computers, but this application is also moving to touchpads due to the prevalence of multi touch gesture control in new desktop operating systems.
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