The earliest colour CRT (Cathode Ray Tubes) televisions used technology where primary-coloured electrons were fired at a phosphor coated surface. The charged electrons would energize the phosphor which then emitted the desired colour.
These days, with digital signals and much more signal information, pixels are created by using various different technologies in order to display an image.
The term Video Conferencing has been a scary word to consumers for many years and more often than not, even the odd technician. Conventional systems required quite a few individual pieces of hardware, operating in concert to provide a functional solution.
These components would be; a hardware codec to handle all the processing, PTZ (Pan Tilt Zoom) camera to capture video, boundary or ceiling microphones to record voice, an amplifier and speakers to reproduce the incoming audio, an echo-cancellation system for users not to hear themselves, single or dual display screens for the actual video,
