Disk cache or virtual memory speeds up hard drive data access.

Question

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Both disk cache and virtual memory are techniques used to speed up hard drive data access. Disk cache stores frequently accessed data in memory so that it can be accessed faster, while virtual memory uses a portion of the hard drive as additional memory when the physical RAM (random access memory) runs low. Both techniques improve system performance by reducing the time it takes to access data from the hard drive.

Disk Cache or Virtual Memory Speeds Up Hard Drive Data