TCP/IP is the older of the two approaches to data communications and is well established throughout the world. The OSI model, however, is a proven concept that is used in all other data ...

This paper explains the 2 popular reference models: OSI reference model and TCP/IP model, by comparing the functionality of each layer in both models.

While some people may argue that the OSI model is obsolete (due to its conceptual nature) and less important than the four layers of the TCP/IP model, Kumar says that “it is difficult to read ...