Networks

Networks

1. LANs (Local Area Networks)

   • LANs are suitable for smaller areas such as single companies or organisations. your school network is a LAN.

2. WANs (Wide Area Networks)

   • WANs are available over very large areas in many diiferent organisations. The World Wide Web is a WAN.

3. Internet

   • The internet is a WAN which is made up of many other smaller networks

4. Extranet

   • An extranet is an external network which can be viewed by many different people at an organisation such as employees, customers, suppliers and shareholders.

5. Intranet

   • This internal network is private to one organisation, vewable to employees only.

6. Routers

   • These are used to allow different networks to communicate. They can connect a network in a home to a wider network such as the internet.

7. Switches

   • Switches are used to connect different computers together as part of a network.

8. Gateways

   • These allow two different networks to speak to one another by translating data.

9. Bridges

   • These are used to join - or bridge - two LANs together to form one larger network.

10. Packet switching

    • Switches can speed up networks by only sending packets of data to the computers which need the data. This means that less data is travelling unnecessarily around the entire network.

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