Networks 2

Networks 2

1. Topologies

   • Bus
   • Star
   • Ring

2. Ring topology

   • Advantages
     • Very organised
     • No need for network server
     • Each computer has equal access to resources
   • Disadvantages
     • Slower than star topology
     • One workstation goes down the entire network goes down
     • Network highly dependent on wires

3. Star networks

   • Advantages
     • Far better peformance than bus network
     • Easy to connect new devices
     • Centralized network
   • Disadvantages
     • Too much dependency on central device
     • Most expensive network

4. Bus networks

   • Advantages
     • Easy to set up
     • Least cable required
     • Mostly used in small network
   • Disadvantages
     • Whole network breaks down if cable breaks
     • Difficult to detect problems
     • Maintenance cost higher with time

5. Advantages of networks

   • Can share printers
   • Site licences are cheaper than standalone licenses
   • Files can be easily shared
   • Networkers can communicate easily
   • Security is good
   • Data is easy to back up
   • File server can be shared
   • Easier back up schedule

6. Disadvantages of networks

   • Software
   • Viruses
   • Purchasing a network can be very expensive
   • Managing networks can be complicated
   • If the file server breaks many of the files are inaccessible
   • Danger of hacking