Networks

Networks

1. LAN

   • Local area network - confined to one location or organisation
   • only accessible on comp

2. WAN

   • Wide are network - spanning a wide area eg. internet

3. Advantages

   • Files are stored and shared
   • Increases storage capacity

4. Disadvantages

   • expensive
   • malware is stored

5. topologies

   • Bus
     • Single label connects all comps
     • Terminators on each end
   • Ring
     • connected in a ring formation
     • each comp receives signals from one of its connected computers
   • Star
     • all comps are connected via hub/switch
   • Mesh
     • each comp is connected to one or more comps

6. Route finding

   • Circuit switching
     • a path across the network is established
     • That path is locked and remains open for the duration of the communication
     • Phone networks use this