Question

What do you understand by Light Pen​

Answer 1

Answer:

a handheld photosensitive device resembling a pen, held to the display screen of a computer terminal for passing information to the computer.

Explanation:

Answer 2

Answer:

A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. ... The light pen can be a very focused flashlight-type of device or a laser pointer, allowing a user to direct viewers' attention to a specific area, like a picture or text, in the presentation