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Solid-State Drives (SSDs)

Most likely, solid-state drives will someday replace one of computing's mainstays, the conventional hard drive -- but not just yet, it would seem. ArsTechnica found "moderate" performance improvements of the 64-gigabyte (GB) solid-state drive over the standard 80-gigabye (GB) hard drive in Apple's MacBook Air, for example, and the high price will keep customers away for some time (typically $2 to $3 per GB, compared to about $0.38 per gigabyte for hard drives). Though solid-state drives are theoretically faster and have no easy-to-break moving parts, they're more susceptible to abrupt power loss, and don't yet have the storage capacity of conventional hard drives. While SSDs will almost certainly be the future, it looks like they won't be the present for quite some time.

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