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A '''string''' is a sequence of characters.<ref>The term "string" or "character string" is used by programmers to indicate a sequence of characters.[http://www.regular-expressions.info/tutorial.html]</ref>

The word '''string''' has a number of rather different meanings in modern English, though they are all related in the sense of denoting something long and thin.

*In common speech, it refers to a textile material, use for such things as wrapping packages. ''Kite string'' is another example.

*In computer software, it is a [[data type]] representing a sequence of characters.

*''[[String theory]]'' is a cutting-edge theory of physics at extremely small scales, postulating that what ordinary quantum mechanics considers to be subatomic particles of size 10⁻¹⁵ meters are actually closed loops, that is strings, of even smaller size.

==References==

==References==

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[[category:Computer Programming]]

[[Category:Computer Programming]]