Foundation Topics

Concepts of TCP/IP

You might think of TCP/IP as a single networking protocol. However, this is not true—TCP/IP is actually a suite, or stack, of networking protocols that have been developed over the past several decades to provide a robust, scalable mechanism for networking computers both on a local and long-distance scale. Before introducing the components of the TCP/IP protocol stack, let’s quickly look at how this protocol stack came to be.

TCP/IP History in Brief

In the late 1960s, the Advanced Research Projects Agency of the US Department of Defense (ARPA, which was later renamed DARPA, The Defense Advanced Research Projects Agency) began sponsoring research into connecting geographically remote computers. TCP/IP began ...

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