Abstract: An automatic signal switching system is provided having a plurality of communications links, each link having at one end a plurality of conductors terminating in a plug configured to be uniquely couplable to a particular source of computer video and related signals. The opposite end of each link is provided with a connector having terminals coupled to respective conductors in a standardized arrangement. This connector is coupled to sensing circuitry for sensing the particular type of computer signals, with the computer signals being provided as an output appropriately configured for that particular type of computer signal. The particular types of signals are applied to analog and digital buffers, which are selectively enabled to pass the computer video signals.