network

network

1. advantages

   • it can share files on all computers
   • it can share logins so you can use the same password
   • you can use printers if you have already on another computer

2. disadvantages

   • costs losts of money
   • it is difficult to set up
   • viruses can spread over computers easily

3. types of network

   • LAN-local area network-a small geographic area
   • WAN-wide area network-lots of geographical areas

4. topology

   • bus topology
     • disadvantages
       • high chance of catastrophic failure
       • high chance of collision
       • the bigger it gets the slower it gets
     • advantages
       • cheap to intall
   • star
     • advantages
       • low chance of failure
       • no collisions
     • disadvantages
       • depends on a switch
       • expensive
   • ring
     • advantages
       • cheap
       • no collisions
     • disadvantges
       • high chance of catastrophic failure
       • difficult to expand

5. ip addresses

   • ip addresses are a way of organising where messages or emails go to
   • ip addresses are unique to ever wifi router

6. internet

   • packets are data split up into small parts so it cant get lost
   • there are billions of wires connecting it up so it is impossible to break or turn off
   • it is conneceted with a mesh of computers