Question

using which device is it possible to draw figures on the screen?
1) joystick
2) barcode reader
3) light pen
4) none​

Answer 1

Answer:

ans., 3) light pen

Answer 2

Light pen is a device from which it is possible to draw figures on the screen.

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.

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