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Cache (caching)

Caching is the process of collecting duplicates of original data values, that are then stored (cached) in a location that is easier to access for enhanced performance.

The following are just a few examples of the different types of cache:

  • CPU cache—a small area of fast memory used by the central processing unit

  • Database cache—temporary storage of database content in multi-tier applications

  • Query cache—temporary storage of query data and metadata to increase performance

  • Web cache—temporary storage of web documents to increase performance

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