{HEAD ~ A Keyboard Video Mouse switch} is provided for {TAIL ~ a set} of user interface devices to share a plurality of computers 
{ HEAD ~ A Keyboard Video Mouse switch } is provided for { TAIL ~ a set } of user interface devices to share a plurality of computers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH