Multiple choice

Directions: Find out from the following which is the correct option:

A light sensitive photoelectric cell to signal screen position to the computer is called

  1. key board

  2. mouse

  3. light pen

  4. printer

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A light pen is an input device that uses a light-sensitive detector to allow a user to point to displayed objects or draw on the screen in a similar way to a touchscreen.