Local Area Networks (LAN)

• Files can be stored on a central computer (the file server) allowing data to be shared throughout an organisation.
• Files can be backed up more easily when they are all on a central fileserver rather than when they are scattered across a number of independent workstations.
• Networks also allow security to be established, ensuring that the network users may only have access to certain files and applications.
• Software and resources can be centrally managed.
• Network versions of software often allow for their speedy installation on workstations from the file server.
• Expensive devices such as laser printers or scanners can be shared.
• Users can access their files from any workstation

Wireless Networks

• Connects computers to a LAN, and the Internet, wirelessly with all the advantages of a wired connection but also having the advantages of mobility within the wireless range of the network.
  

Wide Area Networks (WAN)

• Connects LANs and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations.
  

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