Loop

The term loop, in its general sense, refers to something that closes back on on itself. It has been used in the following particular applications:

• A loop is one of the fundamental structures used to tie knots.
• A loop in mathematics is a quasigroup with an identity element.
• The Loop is an area in downtown Chicago.
• In computer science, a loop is a sequence of commands that is carried out several times but written just once. (See program loop.)
• More generally, an example for a simple one-step loop in information theory can be found by clicking here on loop.
• In music, the term loop describes a finite element of sound which is repeated by technical means.
• In telecommunication, a loop is (???)

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