| http://www.w3.org/ns/prov#value | - Computer 642 further includes a hard disk drive 656 for reading from and writing to a hard disk (not shown), a magnetic disk drive 658 for reading from and writing to a removable magnetic disk 660, and an optical disk drive 662 for reading from or writing to a removable optical disk 664 such as a CD ROM or other optical media.
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