Question

what is the main use of a light pen

Answer 1

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A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy

Answer 2

Answer:

The main advantage of using the light pen is ………

(a) easy to use

(b) accurate

(c) easy to detect the characters

(d) drawing directly onto the screen

Explanation:

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