Ports
This page is linked to networks and networking. [1]
In computer networking, a port is a communication endpoint. At the software level, within an operating system, a port is a logical construct that identifies a specific process or a type of network service. Ports are identified for each protocol and address combination by 16-bit unsigned numbers, commonly known as the port number. The most common protocols that use port numbers are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).[2]
I like the analogy that an IP address is like an address to a big apartment building, and a port is the address of a specific apartment within the building.
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