Skip to main content

memory management

memory management Control of the memory hierarchy of a system as a whole, or control of allocation at a fixed level within the memory hierarchy. In the former case information stored within the system is shuttled between one realization of memory and another, the objective being to maintain maximum hit rate in each form of memory. This movement may be controlled by

(a) voluntary user action, e.g. copying a file from disk to memory in order to edit it;

(b) system software, e.g. transfer of a page between swapping device and memory when a page fault occurs;

(c) system hardware, e.g. movement of a set of words from memory to cache when a word within the set is accessed.

At a given level of the hierarchy the operating system will control what fraction of that level is to be allocated to each process. This can clearly only occur where control is by system software, and refers most particularly to the allocation of memory to a process, or to the allocation of space on the swapping device. Movement between disk and magnetic tape is often separately treated as archiving. See also storage protection.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"memory management." A Dictionary of Computing. . Encyclopedia.com. 22 Oct. 2018 <http://www.encyclopedia.com>.

"memory management." A Dictionary of Computing. . Encyclopedia.com. (October 22, 2018). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/memory-management

"memory management." A Dictionary of Computing. . Retrieved October 22, 2018 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/memory-management

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.