Currently used by the U.S. and certain countries in South American and the Far East. Phosphor -The chemical in the CRT which holds the light generated by the red, green and blue electron guns. Each dot on the screen is actually a phosphor which glows for a given length of time. Pixel - A picture element, dot or cell. The visual display screen is divided into a matrix of rows and columns of these transistor cells.
Pixels are the smallest unit on the screen grid that can be displayed.
The three basic colors which in combination form all the color variation of RGB video images. RGB refers both to the separate color signals and to the separate color CRTs used. Scan Converter - A device which translates the digital signal from a computer into a video signal which can be shown by a video projector or TV monitor. The beam scans from left to right and from top to bottom 525 lines to form one frame of NTSC video. In interlaced monitors the beam is shut off or blanked during the retrace period from right to left, giving the appearance of black lines on the TV screen.