Associative memory

  • Authors:

  • Kenneth C. Smith;Adel S. Sedra

  • Affiliations:

  • -;-

  • Venue:
  • Encyclopedia of Computer Science
  • Year:
  • 2003

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Abstract

Data in an associative or content-addressable memory is looked up by properties of its value, rather than by its address as in conventional memory. Such a property might be a pattern of bits at the start of a word or set of words of storage, for example, that serves as an identifying tag. Associative memory is used in multilevel memory systems (see MEMORY HIERARCHY), in which a small fast memory such as a cache may hold copies of some blocks of a larger memory for rapid access.