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The MicroDrive card is actually a miniature hard drive housed in
a Type II CompactFlash chassis. The IBM MicroDrive was the first
compact memory card to offer a full 1 Gigabyte storage capacity.
Although flash memory has bypassed the MicroDrive in capacity, the
MicroDrive is still the best buy on a dollar-per-byte basis.
MicroDrives have a reputation for being delicate and unreliable.
They are more prone to failure since they have moving parts that
can wear, or be damaged. But when handled normally and not abused,
they are very reliable. Because of their moving parts, MicroDrives
use more battery power than flash memory. And compared to new, high-speed
CompactFlash cards, MicroDrive seek and write times are fairly slow.
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