Topology

Topology is the way that a LAN is laid out. A LAN may be laid out as a bus, star or ring network. Most LANs in large organisations are now set out as star networks.

• It's slow when busy because of data collisions.

• Terminators are needed to prevent signals from being reflected.

BUS.

In a bus network, all the computers are attached it a cable backbone.

ADVANTAGES:

• Simple and cheap to set up.

DISADVANTAGES:

• Limited length.
• If the cable is disrupted  the whole network goes down.

 -} This is a BUS NETWORK :

Here, there is more information about this topic: http://en.wikipedia.org/wiki/Network_topology