NETWORKS :)

NETWORKS :)

1. LAN- local area network

   • network in a local area

2. WAN- wide area network

   • network spread across different countries or connection of many local area networks

3. share file the same files are available on whichever computer

4. share resources such as printers and internet connection.

5. share login so the same username amd password can be used on every computer on the network

6. disadvantages

   • it requires technical expertise

7. advantages

8. cost networks are expensive to set up

9. increase risks problems such as viruses can affect all computers on a network

10. star topology-All computers are connected to a central switch

    • disadvantages
      • expensive
      • depends on a switch
    • advantages
      • no chance of failure
      • no collisions

11. ring topology-all computers connected in a ring

    • advantages
      • cheap
      • no collisions
    • disadvantages
      • high chance of catastrophic failure
      • difficult to expand

12. bus topology-computers connected through a single cable

    • ADVANTAGES
      • cheap to install
    • DISADVANTAGES
      • lots of collisions
        • high chance of catastrophic failure
      • slows down as more computers are added

13. internet addresses

    • the internet is a huge network with more devices than its possible to assign a unique address
    • unique addresses are assigned to buisnesses and houses
    • these houses and businesses run their own mini network inside with different ip addresses