4.3.1 - Networks

4.3.1 - Networks

1. Key factors when choosing a network

   • Cost
   • Size of organisation
   • How the system will be used
   • Existing systems
   • Performance required
   • Security Issues

2. Types of network

   • Client Server - one computer for specific task
     • Advantages
       • Central Backups are possible
       • Amateurs don't affect other users with lack of knowledge
       • Can share files with others remaining private
       • Fast response to peripherals i.e. printer
     • Disadvantages
       • Expensive - managers needed
       • Time-consuming to acquire expertise
       • Operating system needed to manage access rights
   • Peer-to-peer - computers have same status and are able to share specific tasks
     • Advantages
       • Cost saving
       • Equal status
       • No network manager needed
       • Easy to set up
       • No reliance on server
       • Lower operating costs
       • Peer responsibility
     • Disadvantages
       • Knowledge
       • Designed for up to 15 PCs
       • Security Issues
       • Backups for individual PCs