networks mindmap

networks mindmap

1. advantages

   • you get to share files
     • the same files are availabe on which ever computer you are on
   • share resources
     • share printers and internet connection
   • share logins
     • the same username and login

2. disadvantages

   • cost
     • networks are very expensive
   • increased risk
     • viruses affect every PC on the network
   • difficulty
     • expertise is needed to set up and maintain a network

3. lan

   • local area
     • a network that is in a small area

4. wan

   • wide area
     • a network that has a wide span

5. topology

   • star topology
     • advantages
       • low chance of failure
       • no collisions
       • (fast)
     • disadvantages
       • expensive
       • it all depends on a hub or switch
   • ring topology
     • advantages
       • cheap
       • no collisions
       • (fast)
     • disadvantages
       • high chance of catastrophic failure
       • difficult to expand
   • bus topology
     • advantages
       • cheap to install
     • disadvantages
       • slows down when more computers are added
       • if that one wire fails, all of the computers fail

6. network addressing

   • an ip address is a unique value assigned to every computer on a network, to identify it
   • the internet is a huge network with more device than it's possible to assign a unique adress to
   • unique address are assigned to businesses and houses.
   • these houses and businesses run their own mini-network inside with different IP addresses