Definition: Disk


A portion of a computer's RAM set aside for temporarily holding information that has been read from a disk. The disk cache does not hold entire files as does a RAM disk, but information that has either been recently requested from a disk or has previously been written to a disk.




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Data Recovery Fact

RPM (Revolutions per Minute)

Rotational speed of the media (disk), also known as the spindle speed. Hard drives typically spin at one constant speed. The slower the RPM, the higher the mechanical latencies. Disk RPM is a critical component of hard drive performance because it directly impacts the rotational latency.

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