PC Card

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In computing, PC Card (originally PCMCIA) is the form factor of a peripheral interface designed for laptop computers. It was originally for memory expansion, but the existence of a usable general standard for notebook peripherals led to all manner of devices being made available in this form. Typical devices include network cards, modems and hard disks.

Many notebooks in the 1990s came with two Type II slots with no barrier in between (allowing two type II cards or one type III card). With the removal of legacy ports, most modern notebooks only feature one Type II card slot.

PCMCIA modules (or devices) were designed by the US computer industry to compete with the Japanese JEIDA memory card devices. The two standards later merged as JEIDA 4.1 or PCMCIA 2.0 (PC Card) in 1991.