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Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of protocols developed by the United States Department of Defense in the 1970s. TCP/IP supports the construction of internetworks.[1] TCP/IP saw very little use outside of government facilities and public universities until the commercialization of the internet began in the early 1990s. At that time TCP/IP slowly replaced the, then dominant, Novell NetWare IPX/SPX protocol.


Transmission control protocol is the standard for most Internet services. It is used in conjunction with the Internet Protocol. TCP manages the individual converations between web servers and web clients through ensuring that packets reach their intended destinations. TCP enables reliable communication by dividing HTTP messages into segments.[2]


Internet protocol, documented in RFC 791, operates under the network layer in the TCP/IP stack offering a connectionless internetwork service. It provides features such as addressing, type-of-service specification, fragmentation and reassembly and security.

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