what is CRT?
CRT stands for Cathode Ray Tube. CRT tubes are basically evacuated glass tubes which means a vacuum is created within these glass tubes. The CRT consists of an electron gun, a fluorescent screen and magnetic field generating plates. The electron gun produces a beam of electrons which are deflected by means of the magnetic plates to strike the fluorescent screen which in turn glows at the points of striking of the electrons. This principle of CRT is used in the CRT computer monitors.
