JEIDA memory card
Encyclopedia
The JEIDA memory card standard was a popular memory card standard at the beginning of memory cards appearing on portable computers. JEIDA
cards could be used to expand system memory or as a solid-state storage drive. Before the advent of the JEIDA standard, laptops had proprietary cards that were not interoperable with other manufacturers laptops, other laptop lines, or even other models in the same line.
The establishment of the JEIDA interface and cards across Japanese portables provoked a response from the US government, through SEMTEC, and thus PCMCIA was born. PCMCIA and JEIDA worked to solve this rift between the two competing standards. In 1991, the two standards merged, and became JEIDA 4.1 or PCMCIA 2.0.
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standard that defines Type I, II, III, and IV card sizes.
Japan Electronic Industries Development Association
The was an industry research, development, and standards body for electronics in Japan. It was merged with EIAJ to form JEITA on November 1, 2000.JEIDA was similar to SEMTEC of the USA, ECMA of Europe....
cards could be used to expand system memory or as a solid-state storage drive. Before the advent of the JEIDA standard, laptops had proprietary cards that were not interoperable with other manufacturers laptops, other laptop lines, or even other models in the same line.
The establishment of the JEIDA interface and cards across Japanese portables provoked a response from the US government, through SEMTEC, and thus PCMCIA was born. PCMCIA and JEIDA worked to solve this rift between the two competing standards. In 1991, the two standards merged, and became JEIDA 4.1 or PCMCIA 2.0.
Version 1.0
Version 1.0 is a 88-pin memory card. It has 2 rows of pin holes which are shifted against each other by half the pin spacing. The card is 3.3mm thick.Version 2.0
Version 2.0 is only mechanically compatible with the Version 1.0 card. Version 1.0 cards fail in devices designed for Version 2.0.Version 3
Version 3 is a 68-pin memory card. It is also used in the Neo GeoNeo Geo (console)
The is a cartridge-based arcade and home video game system released on July 1, 1991 by Japanese game company SNK. Being in the Fourth generation of Gaming, it was the first console in the former Neo Geo family, which only lived through the 1990s...
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Version 4.1
Version 4.1 unified the PCMCIA and JEIDA standards as PCMCIA 2.0. v4.1 is the 16-bit PC CardPC Card
In computing, PC Card is the form factor of a peripheral interface designed for laptop computers. The PC Card standard was defined and developed by the Personal Computer Memory Card International Association which itself was created by a number of computer industry companies in the United States...
standard that defines Type I, II, III, and IV card sizes.
Version 4.2
Version 4.2 is the PCMCIA 2.1 standard, and introduced CardBus' 32-bit interface in an almost physically identical casing.See also
- Japan Electronic Industries Development AssociationJapan Electronic Industries Development AssociationThe was an industry research, development, and standards body for electronics in Japan. It was merged with EIAJ to form JEITA on November 1, 2000.JEIDA was similar to SEMTEC of the USA, ECMA of Europe....
- Japan Electronics and Information Technology Industries AssociationJapan Electronics and Information Technology Industries AssociationThe is a Japanese trade organization for the electronics and IT industries. It was formed in 2000 from two earlier organizations, the Electronic Industries Association of Japan and the Japan Electronic Industries Development Association.-See also:...
- Personal Computer Memory Card International Association
- Compact Flash