Definition: Rotational Latency


The amount of delay in obtaining information from a disk due to the rotation of the disk. For a disk rotating at 5200 RPM, the average rotational latency is 5.8 milliseconds. See also Mechanical Latency.




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NTFS

The file system designed for the operating system Windows NT. This file system is more advanced than the FAT file system used by the earlier Windows operating systems, with regards to data structures, filenames, security, and access control.

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