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An endpoint of a bidirectional inter-process communication flow. This often refers to a process flow over a network connection, but by no means is limited to such.

A socket; in network computing; is an endpoint of a bidirectional inter-process communication flow across an Internet Protocol-based computer network, such as the Internet.

An internet socket address is the combination of an IP address (the location of the computer) and a port (which is mapped to the application program process) into a single identity, much like one end of a telephone connection is the combination of a phone number and a particular extension.

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