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The World Wide Web
Originally non-existent, the World Wide Web ("The Web") has become the most exciting feature of the Internet today, so much so that many people think that World Wide Web is the whole of the Internet!
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E-mail (electronic mail)
From your home or office computer, you can use e-mail to exchange messages with other users around the world. There can be attachments like sound, pictures, programs and other files sent along with the email. You can send the same message to many people at one go. All these are done at the fraction of the cost of traditional mail.
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Internet Relay Chat (IRC)
This is a means of communicating instantaneously with other users round the world. The messages can be public or private. One can even hold simultaneous multiple public and private conversations.
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Usenet
The Usenet consists of newsgroups which are usually more of a public discussion forum than a source of news. The messages are of the "bulletin board" kind and are sent in a way similar to e-mail, except that everybody gets to see the message.
Usenet messages propagate throughout the Internet at a slower rate than the almost-instantaneous IRC channels.
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Others
Gopher - purely text-based resources superceded by the more colourful and interactive World Wide Web.
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File Transfer Protocol (FTP)
The File Transfer Protocol (or: FTP), is for storing and retrieving data files on large computer systems. Many web pages on the World Wide Web now provide FTP links, so that people can download files at the click of a mouse.
· Then there is TELNET, which is a way of connecting directly to computer
systems on the Internet.
· And there is "CU-SeeMe", a video-conferencing system
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