PC Card

PC Card

Various PC Cards, with the left one being a CardBus PC Card
Year created	1990
Created by	Personal Computer Memory Card International Association
Superseded by	ExpressCard (2003)
Width in bits	16 or 32
No. of devices	1 per slot
Speed	133 MB/s[citation needed]
Style	Parallel
Hotplugging interface	Yes
External interface	Yes

PC Card is a parallel peripheral interface for laptop computers and PDAs.^[1]

The Personal Computer Memory Card International Association (PCMCIA) originally introduced the 16-bit ISA-based PCMCIA Card in 1990, but renamed it to PC Card in March 1995 to avoid confusion with the name of the organization.^[2] The CardBus PC Card was introduced as a 32-bit version of the original PC Card, based on the PCI specification. The card slots are backward compatible for the original 16-bit card, older slots are not forward compatible with newer cards.

Although originally designed as a standard for memory-expansion cards for computer storage, the existence of a usable general standard for notebook peripherals led to the development of many kinds of devices including network cards, modems, and hard disks.

The PC Card port has been superseded by the ExpressCard interface since 2003, which was also initially developed by the PCMCIA. The organization dissolved in 2009, with its assets merged into the USB Implementers Forum.