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TCP/IP

"Transmission Control Protocol/Internet Protocol"
Abbreviation for Transmission Control Protocol/Internet Protocol

Summary: TCP/IP was created for military/scientifc purposes. To allow different networks designed by different vendors into a network of networks (the "Internet"). Initally it was successfull because it delivered a handfull of basic services. The IP (Internet Protocol) component provides routing from departmental to Enterpise network, then to Regional networks, and finally to the global Internet.
  • TCP - is responsible for verifying the correct delivery of data from client to server. Data can be lost in the intermediate network. TCP adds support to detect errors or lost data and to trigger retransmission until the data is correctly and completely received.

  • IP - is responsible for moving packet of data from node to node. IP forwards each packet based on a four byte destination address (the IP number). The Internet authorities assign ranges of numbers to different organizations. The organizations assign groups of their numbers to departments. IP operates on gateway machines that move data from department to organization to region and then around the world.