Networks

Networks

1. Topology

   • Bus
     • Advantages
       • If the computer fails the network continues to work
       • Cheap network to set up
     • Disadvantages
       • Speed of data is slow
       • If the network cable breaks, none of the computers can access the networks
   • Star
     • Advantages
       • If a cable/computer breaks , all the other computers will still be able to access the file server Direct access to the file server means the access is fast
     • Disadvantages
       • Expensive to install due to the cables needs
       • If a file sever fails all the computers are affected
   • Ring
     • Advantages
       • Cheap networks to setup
       • Data speed is continuous(no data collisions)
     • Disadvantages
       • If any computers or the network cables breaks it can affect the whole network

2. Advantages

   • Hardware can be shared ( peripheral devices)
   • Software can be shared Data can be shared Networked computers can communicate
   • Allows easy back up schedules

3. Disadvantages

   • Cost of cabling and setting up can be high
   • Hackers may gain unauthorised access to files saved on a network server and use malicious purposes
   • A viruses can be spread from one computer to another very quickly

Bilder und Dateien der Mindmap