CRT is the acronym for Cathode Ray Tube. It is the conventional monitor technology. CRTs are (still) cheaper than the alternative display technology, flat panels.

A CRT generates an image in the following way: A CRT creates a white pixel by targeting an electron beam to a front screen which lights up the phosphor crystals. Creating a black pixel is easily achieved by the CRT by suppressing the electron beam so that no electrons make it to the screen.


  • QI/QA


WW stands for Window Width. Window Width controls contrast is a range of grayscale values to be mapped on monitor…


SMPTE (Society for Motion Picture and Television Engineers) is an international standards development organization. SMPTE has specified several test patterns,…

SOP Class

A SOP (Service Object Pair) Class is a combination of a service such as Store, Retrieve, and an object such…