TCP/IP Tutorial
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TCP/IP is the communication protocol for the Internet.
In this tutorial you will learn what TCP/IP is, and how it works.
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A communication protocol is a description of the rules computers
must follow to communicate with each other.
The Internet communication protocol
defines the rules for computer communication over the Internet.
Internet browsers and Internet servers use TCP/IP to connect to the Internet.
Your browser uses TCP/IP to access Internet servers, and servers use TCP/IP to
send HTML back to your browser.
Your e-mail program uses TCP/IP to connect to the Internet for sending and receiving e-mails.
Your Internet address "123.19.56.205" is a part of the standard TCP/IP protocol
(and so is your domain name "www.someonesplace.com").
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