SOFTWARE AND ASSOCIATED HARDWARE FOR CONTROLLING AUDIO, VIDEO AND PROJECTING ACCESSORIES AND COMPUTERS IN A CLASSROOM, BOARDROOM, LARGE SITE COMPRISING SEVERAL ROOMS, OUTDOOR AREAS AND A COMBINATION THEREOF; APPARATUS AND INSTRUMENTS FOR VIEWING, RECORDING, TRANSMISSION, PROCESSING AND REPRODUCTION OF DIGITAL OR ANALOG SOUND OR IMAGES, NAMELY, VIDEO-AUDIO SIGNAL DISTRIBUTORS, VIDEO-AUDIO SIGNAL SWITCHERS AND MATRIX SWITCHERS, VIDEO-AUDIO ENHANCERS, COLOR PROCESSORS, RF PROCESSORS, SPECIAL EFF...