(:CRT Monitor:)

cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes aphosphore scent surface. Most desktop computer displays make use of CRTs. The CRT in a computer display is similar to the"picture tube" in a television receiver.cathode ray tube consists of several basic components, as illustrated below. The electron gun generates an arrow beam of electrons. The anodes accelerate the electrons.Deflecting coils produce an extremely low frequency electromagnetic field that allows for constant adjustment of the direction of the electron beam.There are two sets of deflecting coils: horizontal and vertical.(In the illustration, only one set of coils is shown for simplicity.) The intensity of the beam can be varied. The electron beam produces a tiny, bright visible spot when it strikes the phosphor-coated screen

The CRT in a computer display is similar to the"picture tube" in a television receiver.

cathode ray tube consists of several basic components, as illustrated below. The electron gun generates an arrow beam of electrons.