NIST

external memory data structure

(data structure)

Definition: A data structure that is efficient even when accessing most of the data is very slow, such as, on a disk.

See also B-tree, external memory algorithm.

Note: See [Vitt01]. The external memory could be magnetic tape or even main memory if the cache is very fast.

Author: PEB


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Entry modified 17 December 2004.
HTML page formatted Mon Feb 2 13:10:39 2015.

Cite this as:
Paul E. Black, "external memory data structure", in Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 17 December 2004. (accessed TODAY) Available from: http://www.nist.gov/dads/HTML/externalMemoryDataStr.html