Link

In telecommunication, the term link has the following meanings:

1. The communications facilities between adjacent nodes of a network.

2. A portion of a circuit connected in tandem[?] with, i.e. , in series with, other portions.

3. A radio path between two points, called a radio link.

4. In communications, a general term used to indicate the existence of communications facilities between two points.

5. A conceptual circuit, i.e. , logical circuit, between two users of a network, that enables the users to communicate, even when different physical paths are used.

Note 1: In all cases, the type of link, such as data link, downlink, duplex link, fiber optic link[?], line-of-sight link, point-to-point link[?], radio link and satellite link[?], should be identified.

Note 2: A link may be simplex, half-duplex, or duplex.

6. In a computer program, a part, such as a single instruction or address, that passes control and parameters between separate portions of the program.

7. In hypertext, the logical connection between discrete units of data.

Source: from Federal Standard 1037C and from MIL-STD-188 and from the Department of Defense Dictionary of Military and Associated Terms

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In computer programming, link means to take separately compiled object code modules, at least one of which refers to an address in another, and substitute the actual addresses of routines in the other module for placeholders.

8. A Nintendo video game character from the Legend of Zelda series.

9. In knot theory a link is several knots (possibly including the unknot) which may be linked together. These are the components of the link. If they are not linked, they are said to be unlinked, but they are still referred to as a link. Likewise a knot may be called a link, even though it has only one component.