Unit 1 Networks

Unit 1 Networks

1. Factors that influence the choice of a network

   • Cost
     • Training Costs
     • cost of third party communication lines( BT & Virgin)
     • Hardware/software Costs
     • Staffing Costs
   • Security
   • Existing Systems
   • Size of organisation
   • How the system will be used
   • Performance required

2. Topologies

   • Bus
     • Advantages
       • easy to add more devices to network
       • cost effective as small amount of cable
     • Disadvantages
       • if the backbone breaks, the network fails
   • ring