What is a light pen ?

Question

What is a light pen ?

asked Jan 28, 2022 by anonymous

1 Answer

Answer :

A light pen is a computer input device. Light pen looks a lot like a pen , hence the name light light pen. It has a light sensor on one end that can sense light , and the other end is connected to a computer. When the head of the lightpen is moved to a point on the monitor screen, the CPU can understand what is at that point or the coordinates of that point . It also allows you to draw some text or draw on the VDU screen or change the screen image as needed . Light pens are used in engineering designs , various designs or diagrams.

answered Jan 28, 2022 by anonymous

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