The TCP/IP protocol is made up of 2 components, namely the Transmission Control Protocol (TCP) and the Internet Protocol (IP). The purpose of TCP/IP is to establish a connection between networks (networks), which are commonly called internetworks or internets, which provide communication services between networks that have a variety of physical forms. The obvious goal is to connect hosts on different networks, or perhaps geographically separated, over a large area.
Another important aspect of TCP/IP is establishing a standard in communications. Each physical form of a network has different technology, so special programming or functions are needed to be used in communication. TCP / IP provides special facilities that work on programming or special functions from each physical network.
So that the architectural form of the physical network will be hidden from users and network application makers. With TCP/IP, users no longer need to think about the physical form of the network to communicate.
Like software, TCP/IP is formed in several layers. By being formed in layers, it will make it easier to develop and implement. Between layers can communicate up and down with an interface link. Each layer has different functions and uses and supports the layer above it.
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