networks

networks

1. advantegs

   • share files
     • the same files are availble which ever computer is on the network
   • share rescources
     • printers and internet connections are availble to any one on the network
   • share logings
     • same username and password can be use on any computer on that connection

2. disadvanteges

   • cost
     • networks are expensive to set up
   • increased risk
     • promblems such as viruses can affect every computer on that network
   • difficulty
     • expertise is needed to set up and maintain a network

3. types of network

   • LAN
     • Local areas network
       • a network in a small are of single organstaion
   • WAN
     • Wide area network
       • a network that spans a large area or multiple organistation

4. topologys

   • bus topolgys
     • positives
       • cheap to instal
     • negitives
       • high chance of catostrophic failure
       • slows down as more computers are added
   • ring topology
     • positives
       • cheap to instal no collisions
     • negitives
       • high chances of catastrophic failure
   • star
     • advanteges
       • low chance of collins
       • disadvanteges
         • exepensive and depends on a switch
   • mesh
     • advanteges
       • easier to send data to any one n the world
       • it is impossible to break
     • disadvantges
       • cost is asigned to each to connections

5. ip adresses

   • an ip address is a unique value assigned on every computer on a network used to identify.
     • messenger on a network have an iip address atached which is now a computer know wether or not to keep the message