| http://www.w3.org/ns/prov#value | - Computing device 500 further includes a hard disk drive 544 for reading from and writing to a hard disk (not shown), and may include a magnetic disk drive 546 for reading from and writing to a removable magnetic disk 548, and an optical disk drive 550 for reading from or writing to a removable optical disk 552 such as a CD ROM or other optical media.
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