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internet, intranets, and extranets

Discuss the differences among internets, intranets, and extranets and give examples how each one works and its purpose.

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The Internet, or simply the Net, is the publicly available worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP) and many other protocols. It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail, online chat and the interlinked web pages and other documents of the World Wide Web.

source:
en.wikipedia.org/wiki/Internet

An intranet is a private network that is contained within an enterprise. It may consist of many interlinked local area networks and also use leased lines in the wide area network. Typically, an intranet includes connections through one or more gateway computers to the outside Internet. The main purpose of an intranet is to share company information and computing resources among employees. An intranet can also be used ...

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Discuss the differences among internets, intranets, and extranets and give examples how each one works and its purpose.

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