Question

discuss the functioning of light pen?​

Answer 1

Answer:

functioning of light pen is to point on displayed object or draw on the screen in a similar way to touch screen but with greater positional accuracy

Answer 2

Answer:

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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 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.