He further describes how you can use the netstat command-line tool to find port use information. In this video, Tim Warner covers what TCP ports are as well as where and how TCP port numbers are used. One device can receive information for many different processes and services, and which port the information flows on helps to keep it organized. Much like before shipping something to a foreign country, you'd agree where you'd be shipping out of and where you'd have it arriving, TCP ports allow for standardized communication between devices. Ports are numbered and used as global standards to identify specific processes or types of network services. Quick Definition of TCP Ports: A 'port' is a logical distinction in computer networking.

It is one of the main protocols of the Internet protocol suite - and the entire suite is often referred to as TCP/IP. This means the data is reliable, ordered and error-checked in transit.

TCP is defined by being connection-oriented, which means that both the client and the server have to be established before the data gets sent. Quick Definition of TCP: Transmission Control Protocol (TCP) is a global communication standard that devices use to reliably transmit data.

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