Which of the following is a stationary pointing device?
Correct answer: B. Trackball
- A. Mouse
- B. Trackball
- C. Light pen
- D. Joystick
Explanation
Trackball is a stationary pointing device that has a ball on top that the user rolls to move the cursor on the screen. Unlike a mouse, the trackball itself does not move.
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Computer fundamentals covers the history and generations of computers, their characteristics, applications and limitations, and the basic data-processing cycle. It includes binary, decimal, octal and hexadecimal number systems, units of storage, input and output devices, memory types, operating systems, and the distinction between raw data and processed information.
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