Computer peripheral apparatus and equipment; computer peripheral apparatus and equipment for accessing and controlling multiple computers or servers with a single keyboard, monitor and mouse; computer peripheral apparatus and equipment allowing a plurality of users to independently access and control a plurality of computers or servers from a plurality of keyboards, monitors and mice; computer peripheral apparatus and equipment for remote access and control of computers or servers; power switching and power control apparatus; video splitter apparatus to display the output from a single computer on multiple monitors; extension and expansion apparatus and cables for linking computers with keyboards, monitors and mice; peripheral hardware for transmitting keyboard, monitor, mouse, audio and serial data signals over a distance; computer networking apparatus and equipment; apparatus for managing and controlling peripherals; peripheral interconnection equipment; data transfer equipment for system peripherals; modular electronic apparatus for modifying data processing apparatus or computer peripherals for networking purposes; buffer memory apparatus; buffers for plotters and/or printers; ethernet cards; data switching apparatus; data transfer equipment; apparatus for use in selective equipment interconnection and data transfer in a computer network; software for use in relation to peripheral control, data transfer to system peripherals, data switch control, servers and/or equipment interconnection in a computer network; adaptors, cables, racks for mounting computer equipment; publications on the Internet (including web sites); electronic publications; electronic magazines; electronic catalogues