Please enable JavaScript.

Coggle requires JavaScript to display documents.

Unit 3 - Networks pt1 - Coggle Diagram

- - - - Share peripherals such as printers
      - Share software
      - Share data/files
      - Easier for internal communication/can send email
      - Centralised backup
      - Easier to monitor network activity
      - Centralised maintenance (manage the network from one location)
      - Can access data from any computer
    - - A network manager may need to be employed – expensive
      - Security problems – files sent between computers could spread a virus
      - Hackers can gain access to data more easily
      - If the server is down, all workstations on the network are affected
      - Initial cost of servers, communication devices, etc. can be expensive
- - - - A switch analyses each packet of data and sends it to the computer it was intended for.
    - - A hub copies all packets of data to all devices on the network.
    - - A router stores the addresses of computers on the network and transfers data between devices.
    - - A gateway joins together two networks that use different base protocols, e.g. links a LAN to WAN.
    - - A bridge joins together two networks that use the same base protocols, e.g. links LAN to LAN.