Question

How light pen works?

Answer 1

Answer:

Explanation:

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

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.