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Internet (Intranet, Extranet)
Internet (intranet, extranet)

It is almost easier to say what the Internet is not, rather than what it is. Not to be confused with the world wide web, although the two are very closely linked, the Internet is a global network of networks linking up millions of computers (and the data stored on them) by telephone lines, cables, satellites and radio waves. This huge information infrastructure hosts a variety of applications, including the world wide web and electronic mail (email). It uses a set of rules such as TCP/IP (Transmission Control Protocol/Internet Protocol) and FTP (File Transfer Protocol) which govern the exchange of information and allow computers of different types to communicate with each other (Whittaker, 2000: 8–9).

Two adaptations of Internet technology, the intranet ...

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