Topology

Topology

1. Ring Topology

   • All the computers arranged in a circle
   • Data sent by one computer passes around the ring until it reaches the correct computer
   • Advantages
     • The network is not dependent on a central computer
     • Each computer has the same access as the others so no one computer can "hog" the network
   • Disadvantages
     • Faults are difficult to locate
     • If there is a break in the connection then the whole network fails
     • It is immposible to keep the network running whilst equipment is added or removed because there is only one path for the data to follow

2. Bus topology

   • With a bus topology all the devices connected to the network are connected to a common shared cable called the backbone
   • Advantages
     • Cost effective because of the small amount of cable needed
     • Simple cable runs makes it easy to install
     • Easy to add extra devices to the network
   • Disadvantages
     • If more than about 12 devices are connected to the network then the performance of the network is degraded
     • If there is a break in the backbone cable then the network cannot be used

3. The star topology

4. Network to Topology

   • Wi-Fi
     • The router is connected to the internet by a high speed broadband connection
     • The router receives data from the internet
     • Itis transmite
   • Peer to peer network
     • These are where each computer has the same status and they are able to communicate with each other on an equal footing
     • Advantages
       • Cost saving
       • No network manager is needed
       • Easy to set up
       • Lower operating costs
       • Peer responsibility
       • There is no reliance on a server
     • Disadvantages
       • Backups cannot be made centrally