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What is Disk Cache in Operating System? PDF Download

Learn Disk Cache definition in operating system with explanation to study “What is Disk Cache”. Study disk cache explanation with operating system terms to review operating system course for online degree programs.

Disk Cache Definition

  • A buffer, usually kept in main memory, that functions as a cache of disk blocks.

    Operating Systems by William Stallings



Disk Cache Explanation

A disk cache is a mechanism for improving the time it takes to write to and read from hard disk. The disk cache is usually included as part of the hard disk. A disk cache can also be a specified portion of RAM.

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