PMC - Computer Definition
(2) See also PCM.
(3) (PCI Mezzanine Card) A PCI-based mezzanine card that is widely adapted to VMEbus, CompactPCI and PCI cards. Small and compact (74mm x 149mm) and providing 32 or 64-bit data paths, PMC cards enable a large variety of PCI products to be retrofitted to other bus environments. PMC cards use 64-pin connectors. See mezzanine card and PC*MIP.