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In computing, PC Card is a configuration for computer parallel communication peripheral interface, designed for laptop computers, mostly no longer used for laptops (or elsewhere), nor is its successor. Now mostly used are external devices instead of these internal cards, such as connected by USB, that use serial communication, or in rare cases PC Card's successor ExpressCard (also serial, while the parallel form of communication is much less used than previously for most standards, with the PC Card about the last holdout). Originally introduced as PCMCIA Card, the PC Card standard as well as its successors like CardBus were defined and developed by the ''Personal Computer Memory Card International Association'' (PCMCIA). It was originally designed as a standard for memory-expansion cards for computer storage. The existence of a usable general standard for notebook peripherals led to many kinds of devices being made available based on its configurability, including network cards, modems, and hard disks. ==History== The PCMCIA (Personal Computer Memory Card International Association) industry organization was based on the original initiative of the British mathematician and computer scientist Ian Cullimore, one of the founders of the Sunnyvale-based Poqet Computer Corporation,〔 who was seeking to integrate some kind of memory card technology as storage medium into their early DOS-based palmtop PCs,〔 when traditional floppy drives and harddisks were found to be too power-hungry and large to fit into their battery-powered handheld devices.〔 When in July 1989,〔 Poqet contacted Fujitsu for their existing but still non-standardized SRAM memory cards, and Intel for their flash technology,〔 the necessity and potential of establishing a worldwide memory card standard became obvious to the parties involved. This led to the foundation of the PCMCIA organization in September 1989.〔 By early 1990, some thirty companies had joined the initiative already, including Poqet, Fujitsu, Intel, Mitsubishi, IBM, Lotus, Microsoft and SCM Microsystems.〔 The PCMCIA 1.0 card standard was published in November 1990 and was soon adopted by more than eighty vendors.〔〔 It corresponds with the Japanese JEIDA memory card 4.0 standard.〔 It soon became clear that the PCMCIA card standard needed expansion to support "smart" I/O cards to address the emerging need for fax, modem, LAN, harddisk and floppy disk cards.〔 It also needed interrupt facilities and hot plugging, which required the definition of new BIOS and operating system interfaces.〔 This led to the introduction of release 2.0 of the PCMCIA standard and JEIDA 4.1 in September 1991,〔〔 which saw corrections and expansion with Card Services (CS) in the PCMCIA 2.1 standard in November 1992.〔〔 Many notebooks in the 1990s had two adjacent type-II slots, which allowed installation of two type-II cards or one, double-thickness, type-III card. The cards were also used in early digital SLR cameras, such as the Kodak DCS 300 series. However, their original use as storage expansion is no longer common. The PC Card port has been superseded by the ExpressCard interface since 2003, though some manufacturers such as Dell continued to offer them into 2012 on their ruggedized XFR notebooks.〔.〕 , some vehicles from Honda equipped with a navigation system, such as the Honda Civic, the Honda CR-Z the Honda Fit, and the Honda Insight, still include a PC card reader that is integrated into the audio system. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PC Card」の詳細全文を読む スポンサード リンク
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