That Blue Square Thing

AQA Computer Science GCSE

This page is up to date for the new AQA 8525 syllabus for the 2022 exam.

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.

PDF iconNetwork Basics

Networks can be classed as LAN, WAN or PAN in terms of the area they cover.

PDF iconLAN, WAN and PAN intro slides

PDF iconLAN, WAN and PAN types - detail with activities

PDF iconNetwork types table - to complete

Network Topologies

A network topology is how a set of devices are organised. You only need to know about Bus and Star topologies.

PDF iconNetwork Topologies

PDF iconTopologies 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:

bus network topology diagram

Star Topology Diagram:

star network topology diagram