What is a light pen?

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Category : Science » Inventions & Devices | Posted by : ss2602 | Posted on : 10/13/2009 | Updated on : 10/13/2009
Keywords : light, pen, light

Arshad Saher

by ss2602
(211 points)

What is a light pen?

What is a light pen?

Answers

It is a pen-shaped device which is used as an input device to feed data into computers by writing or sketching on the screen of a cathode ray tube.

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