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Internet
The Internet is a decentralised, global network – i.e., it does not depend on any single computer.
Originally developed as ARPANet for the U.S. military, it is now accessible to millions of users.
The Net is made up of a series of subnets; TCP/IP (Transmission Control Protocol/Internet Protocol) is the network protocol that is always used.
The Internet primarily consists of the following services (application options offered by providers):
- E-mail, the most commonly used service.
- World Wide Web, the second most commonly used service.
- Usenet, also called news groups.
- FTP, service for transferring files.
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