An electronic device for the display of images in computers, computer terminals, imaging equipment, and television sets. CRTs may also be found in electronic instruments, such as cathode ray oscilloscopes.
A vacuum tube with a thin window at the end opposite the cathode to allow the cathode rays to pass outside. More generally, any discharge tube in which the vacuum is fairly high.
The acronym CRT, standing for Cathode Ray Tube, denotes a type of screen display commonly employed to showcase processed scans utilized in diagnostic and photographic applications, as well as alphanumeric information. It is also interchangeably referred to as VDU (Video Display Unit).