JEIDA V3

The PC Card Standard defines a 68-pin interface between the peripheral card and the socket into which it gets inserted. It defines three standard PC Card form factors, called Type I, Type II and Type III. All PC Cards measure the same length and width, differing only in thickness. Smaller cards can fit in larger sockets. In addition to electrical and physical specifications, the PC Card Standard defines a software architecture to provide "plug and play" capability across the widest range of products. This software is made up of Socket Services and Card Services. It is Card and Socket Services that allow for interoperability of PC Cards.