(1) A connection that provides the physical transfer of data from one node to another.
(2) In a file system, a connection between a directory and an object. The link is established when the object is created.
(3) In hypertext, an author-defined association between two information nodes.
(4) In SNA, the combination of the link connection (the transmission medium) and two link stations (one at each end of the link connection).
(5) In TCP/IP, a term for a communications line. A TCP/IP link may share the use of a communications line with SNA.
(6) In a file system, a connection between an i-node and one or more file names associated with it.
(7) In data communication, a transmission medium and data link control (DLC) component that together transmit data between adjacent nodes.
(8) A line or arrow that connects activities in a process. A link passes information between activities and determines the order in which they run.
(9) A directional relationship between two items: the parent and the child. You can use a set of links to model one-to-many associations. See also reference.