NETWORKS

NETWORKS

1. network advantages

   • you can log into any computer using the same login
   • same files are available on every computer
   • you can print and use the internet on every computer

2. network disadvantages

   • it is very expensive
   • professional expertise to install it
   • if one computer goes wrong they all do

3. types of networks

   • wan this is wide area network. it can spread from little buisnessess to around the world
   • lan this is local area network which only operates in a small network

4. bus topology

   • cheap to install
   • lots of collisons
   • high chance of catastrophic failure

5. ring topology

   • cheap to install
   • no collisions
   • high chance of catastrophic failure

6. star topology

   • it is very fast
   • low chance of collisons
   • expensive
   • hub fails the network fails

7. ip address

   • An IP Address is a unique value assigned to every computer on a network, used to identify it
   • IP Addresses range from 0.0.0.0 to 255.255.255.255
   • Globally, there are now more devices on the Internet than the 4’228’250’625 devices it’s possible to assign a unique address to
   • When the format of IP Addresses were decided in 1983, 4 billion addresses seemed more than enough

8. mesh network

   • the internet uses it