PC Card

PC Card
   A term that describes plug-in cards that conform to the PCMCIA (Personal Computer Memory Card International Association) standard. A PC Card is about the size of a credit card and uses a 68pin connector with longer power and ground pins that will always engage before the signal pins engage.
   Several versions of the standard have been approved by PCMCIA:
   • Type I
   The thinnest PC Card, only 3.3 millimeters (0.13 inch) thick, used for memory enhancements, including dynamic RAM, static RAM, and flash memory.
   • Type II
   A card used for modems or network interface cards, 5 millimeters (0.2 inch) thick; may also hold a Type I card.
   • Type III
   A 10.5 millimeter (0.4 inch) card, used for mini-hard disks and other devices that need more space, including wirelessnetworkinterfacecards;mayalso hold two Type I or Type II cards.
   In theory, each PC Card adapter can support 16 PC Card sockets (if there is enough space), and as many as 255 adapters can be installed in a PC that follows the PCMCIA standard; inotherwords,PCMCIAallowsamaximum of 4080 PC Cards on one computer. Most PC Card devices are modems, Ethernet and token-ring network adapters, dynamic RAM, and flash memory cards, although mini-harddisks, wireless LAN adapters, and SCSI adapters are also available.

Dictionary of networking . 2014.

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