TCP+IP

=TCP= It stands for Transmission Control Protocol. It is important because it is one half of the network protocol used to control data on the Internet. The other half is IP. TCP is responsible for checking that data has been delivered correctly from your computer (the client) to another computer (the server). If data is lost, then TCP requests that the data is re-sent.

=IP= IP stands for Internet Protocol. The IP half of the protocol is responsible for moving data from one part of the network to another. Each packet of data has a destination IP address that looks something like this:- 82.165.39.154 (Cut and paste or type this IP address into your browser address bar to see where you get to). Every computer or device connected to the Internet has an IP address.

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