":: Excuse me  But the OSI model is a MODEL that defines the world as the writers of that spec perceive the world into 7 layers.  It does not mean it is the only MODEL!  TCP is one of the main protocols in TCP/IP networks. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent.   The Internet was built on the TCP/IP model  OSI refines it into its own spec.  If you want to write about these things in the article, Great!  But be sure of your facts and one does not exclude the other.  They should both be talked about.  IMHO, tcp/ip is much more important, its how things work.  (talk • contribs •  count) 

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