Computer software for management and control of systems for distribution, switching, and processing of audiovisual signals, and for control of audiovisual devices generating and receiving those signals; computer software for providing instructions for transmission and dissemination of video, audio, data, power, graphics, images, signals, messages and control functions; computer software for use as an interface between audio/video sources and audio/video repeater devices; computer software for use as an interface between audio/video sources and audio/video monitors; computer software interface for connecting, controlling and networking a wide variety of computer and communications hardware, consumer electronic devices, components, peripherals and home appliances.