networks

networks

1. types of networks

   • LAN
     • a network in a small area or single organisation
   • WAN
     • A network that spans a large area or multiple organisations

2. advantages

   • share files
     • the same files are available on any computer
   • share resources
     • such as printers and internet connection
   • share logins
     • username and password can be used on every computer

3. disadvantages

   • cost
     • networks are expesnsive to set up
   • increased risk
     • viruses can be caused on every computer
   • difficulty
     • expertise is needed to set up and maintain a network

4. TOPOLOGIES

   • ring
     • cheap to install
     • no collisions
     • looks like a ring
   • bus
     • cheap to install
     • looks like a bus
     • however is very slow
   • star
     • low chances of failiure
     • no collisions
     • looks like a star

5. IP ADRESS

   • an ID adress is a unique value assigned
   • it connects to every electronic in your house
   • you can change yoy IP adress into binary

6. internet

   • its a giant mesh
   • try to find the lowest cost
   • data is split up into small chunks
   • each packet is numbered and sent
   • the packets are re-assembled on the other side