TCP/IP is a protocol stack or protocol suite or group of related protocols, each working together with in a prescribed standard.

TCP/IP is the most popular model or a standard used for the connections to the internet.

TCP/IP is set of rules/protocols for communication on internet.

TCP/IP is the communication protocol for communication between computers connected to the internet.

TCP/IP software is built in all the major operating systems, such as windows, UNIX, Mac OS. The purpose of TCP/IP development was to allow computers to communicate over long distance networks.

Internet Browser and Internet Servers use TCP/IP to connect to the internet. Your Browser uses TCP/IP to access internet servers, and servers uses TCP/IP to send HTML back to your browser.

The Standard defines how computers should be connected to the internet, and how the data should be transmitted between them.

In TCP/IP, each protocol work together, they perform specific function but they inter-relate and depend on each other within a standard.

Protocol: A protocol is an agreement between the two communicating parties on how the communication should proceed.

Protocol is rules for communications on a network.

Networking software is organized as a protocol.

A communication protocol is a description of rules computers must follow to communicate with each other.