A storage module made of flash memory chips. Flash disks have no mechanical platters or access arms, but the term "disk" is used because the data are accessed as if they were on a disk. The disk storage structure is emulated.
The first flash disks were housed in Type II PC Cards for expanding laptop storage. Subsequently, flash disks have arrived in a variety of formats, including entire hard drive replacements (see solid state disk), memory cards for digital cameras (see flash memory) and modules that fit on a keychain (see USB drive).
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