
1) Class of computer 2) Computer hardware
Found on
https://www.crosswordclues.com/clue/plug-compatible

A plug-compatible machine is one that has been designed to be backwards compatible with a prior machine. In particular, a new computer system that is plug-compatible has not only the same connectors and protocol interfaces to peripherals, but also binary code compatibility -- it runs the same software as the old system. A plug compatible manufactu...
Found on
http://en.wikipedia.org/wiki/Plug_compatible
No exact match found.