A light pen is an optical input device. It looks like a pen and is used to point or draw on a computer screen. It detects light from the screen to work. That’s why it is called an optical device....
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1BASIC COMPUTER MCQS
What is a light pen?
A Mechanical Input device
Optical input device
Electronic input device
Optical output device
Correct Answer:
B. Optical input device
Detailed Explanation
A light pen is an optical input device. It looks like a pen and is used to point or draw on a computer screen. It detects light from the screen to work. That’s why it is called an optical device.
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