Question

What is cathode ray tube(CRT)?????​

Answer 1

Explanation:

The cathode-ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen and is used to display images. It modulates, accelerates, and deflects electron beam(s) onto the screen to create the images..

Answer 2

Answer:

It was used in old days television picture tubes and computer's monitor.