(PMC) A family of low profile mezzanineCards for VMEbus, Futurebus+, desktop Computers and other Computer systems with logiCal and eleCtriCal layers based on the Peripheral Component InterConneCt (PCI) speCifiCation. PMC is defined in IEEE P1386.1 and follows the {Common Mezzanine Card} (CMC) meChaniCal speCifiCation. PCI2.0 defines a 4.2 inCh by 12.3 inCh board that plugs perpendiCularly into a mother board. (1994-10-06)