A memory card or flash memory
card is a solid-state electronic flash memory data storage device used
with digital cameras, handheld and Mobile computers, telephones, music
players, video game consoles, and other electronics. They offer high
re-record-ability, power-free storage, small form factor, and rugged
environmental specifications. There are also non-solid-state memory
cards that do not use flash memory, and there are different types of
flash memory.
There are many different types of memory cards and
jobs they are used for. Some common places include in digital cameras,
game consoles, cell phones, and industrial applications. PC card (PCMCIA)
were among first commercial memory card formats to come out in the
1990s, but are now only mainly used in industrial applications and for
I/O jobs (using types I/II/III), as a connection standard for devices
(such as a modem).
From the late 1990s into the early 2000s a host of new formats appeared, including SD/MMC,
Memory Stick, xD-Picture Card, and a number of variants and smaller
cards. The desire for ultra-small cards for cell-phones, PDAs, and
compact digital cameras drove a trend toward smaller cards that left
the previous generation of "compact" cards looking big. In digital
cameras SmartMedia and CompactFlash had been very successful, in 2001
SM alone captured 50% of the digital camera market and CF had a
strangle hold on professional digital cameras.
Nowadays, most new PCs have built-in slots for a variety of memory cards; Memory Stick, CompactFlash, SD, etc. Some digital gadgets support more than one memory card to ensure compatibility.
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