AQA Computer Science GCSE
Networks - the Basics of Computer Networks
Computer networks are everywhere, linking devices together to make them more powerful and increase our own efficiency.
We use networks all the time: at school; at work; at home; and, increasingly, when we're anywhere. Our networks can be wired or wireless and you need to know the advantages and disadvantages of each.
Networks can be classed as LAN, WAN or PAN in terms of the area they cover.
LAN, WAN and PAN types - detail with activities
Network types table - to complete
Wireless and Wired Networks
There are advantages and disadvantages to each type of network.
This content links to Unit 8 - Wireless networking. This means it could easily be the subject of a longer question and you need to be able to deal with Ethical, Environmental and Legal points.
A network topology is how a set of devices are organised. You only need to know about Bus and Star topologies.
Topologies Questions - activities to do
You need to be able to draw and label each topology - assume there will be 3 marks for doing this. Make sure you only include what's asked for - so if they ask for a three computer network with a printer, only draw those things (not a server, for example).
Bus Topology Diagram:
Star Topology Diagram: