Skip to main content

core store

core store A type of nonvolatile memory in which binary information is stored in an array of toroidal magnetic cores. The cores are made of a ferrite material that has two stable magnetic states and can be switched from one to the other by imposing a sufficient magnetic flux; the flux is generated by electric currents in conductors threaded through the cores. The principle of the core store was discovered in 1949 by J. W. Forrester of MIT. Although widely used as main storage for processors from the mid-1950s to the late 1970s, core store has been displaced in modern processor design by semiconductor memory.

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

  • MLA
  • Chicago
  • APA

"core store." A Dictionary of Computing. . 22 Mar. 2019 <>.

"core store." A Dictionary of Computing. . (March 22, 2019).

"core store." A Dictionary of Computing. . Retrieved March 22, 2019 from

Learn more about citation styles

Citation styles 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, cannot guarantee each citation it generates. Therefore, it’s best to use 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

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most 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.