Networks

Networks

1. Topology

   • Bus
     • Advantages
       • Cheap
       • Easy to run
       • If one computer fails the system will still work
     • Disadvantages
       • All computers rely on the server and network cables
       • Speed of data is slow
   • Ring
     • Advantages
       • Data transfer is fast, even with many computers on the network
       • One direction - No data collisions
       • Cheapest
     • Disadvantages
       • Any computer fail means the network fails
       • Any cable fail means the network fails
   • Star
     • Advantages
       • A cable failing will not affect the network
       • Fast file transfer
       • Access to server constantly
     • Disadvantages
       • Expensive
       • Will need a manager
       • Server fail means all computers will be affected

2. Advantages

   • Can share peripherals
   • Files easily shared
   • Can communicate by email or instant messager
   • Site licences are cheap

3. Disadvantages

   • Network cabling and servers can be expensive
   • Requires training and a manger
   • Viruses can spread fast
   • WANs are prone to hacking