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A network consists of two or more computers that are linked in order to share resources (such as printers and storage etc.), exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams.

Three very common types of networks are:

  • Local Area Network (LAN)
  • Metropolitan area network (MAN)
  • Wide Area Network (WAN)

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