networks

networks

1. Advantages

   • you can access it easier
     • you can log onto any computer in the school
       • you can access you files on every computer without it deleting
         • you can print,use the internet and email

2. A network is a group of computers linked together

3. disadvanges

   • expensive- extra hardware and wiring needed
     • more room for error- if something goes wrong it can effect every computer
       • difficult- it requires a technical expertise
         • malware- viruses

4. IP address

   • An iP address is unique value assigned to every computer on a network , used to identify it

5. star

   • advantages
     • fast
     • easy to add new computers
     • low chance of catastrophic failure
   • disadvantages
     • expensive
     • failure of the switch will take down the network

6. WAN

   • a wide local area network - a network over a large area or multiple organisation

7. ring

   • advantages
     • cheap to install
     • no collisions- only one computer transmitting on each cable
   • disadvantages
     • high chance of catastrophic failure
     • difficult to add new computers

8. LAN

   • A local area network - a network based in a small location or single organisation

9. tepology

10. they can work together

11. network topology is the arrangement of computers and other elements of a network

12. bus

    • the network consists of a single cable that runs the network
    • Advantages
      • cheap to install (only one wire needed
    • disadvanges
      • high chance of catastrophic failure ( a break in the central cable takes out of the entire network)
        • high chance of collisions (multiple communication on the same cable that corrupt each other, slowing down the network)
          • more computers mean more collisions