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INTERNET AND E-MAIL
                    06














                                Your Aim

                                to learn about:

                                        The Internet                            World Wide Web
                                        How Does the Web Work?                    Using Web Browser
                                         Using URLs                                 E-Mail
                                           Emoticons and Acronyms


                  As we know that the Internet is a computer network that connects hosts and systems
                  throughout the world. In this chapter, we will learn about the Internet and e-mail service

                  of the Internet in detail.
                      THE INTERNET

                  The seed of the Internet was planted in 1969 when the Advanced Research Projects

                  Agency (ARPA) of the United States Department of Defense began connecting
                  computers at different universities and defense contractors. The resulting network

                  was called Advanced Research Projects Agency Network (ARPANET).
                  In the beginning, ARPANET was a large network serving only a handful of users, but

                  it expanded rapidly. Initially, the network included four primary host computers.
                  By 1971, the network accommodated 15 nodes. The Internet acts as a carrier for
                  several different services, each with its own distinct features and purposes. The

                  most commonly used Internet services are: World Wide Web, electronic mail, news,
                  file transfer protocol, chat, instant messaging, online services and peer-to-peer
                  services. January 1, 1983 is considered the official birthday of the Internet. Earlier the

                  computer networks did not have a standard way to communicate with each other.
                  A new communications protocol was established in 1970 named Transmission

                  Control  Protocol/Internet  Protocol  (TCP/IP). The TCP/IP allows computers
                  connected to different networks communicate with each other. It was adopted as
                  protocol standard for ARPANET in 1983.



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