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The term 'domain' has several different uses. The most common uses in computer networking are the following:

  • Windows NT/2000/XP domain - a logical group of computers with centralised security and administration.
  • Internet domain - a domain name (e.g. is a way of identifying computers and resources on the Internet. Each domain name corresponds to a numeric IP (Internet Protocol) address (e.g. The Domain Name System matches the domain name to the IP address and the Internet uses the IP address to send and receive data.

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