Teach Computing

Revision notes, activities, lesson plans, teaching ideas, and other resources for GCSE, A-Level, and IB Computer Science teachers and students.

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CommandPoint CAD

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CAD+911 System

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London Ambulance CAD failure

The 1992 London Ambulance Service CAD failure is probably the most notoriou...

Washington State 911 Failure

A 911 emergency telephone system in Washington State and Oregon shut down f...

London ambulance failure (2017)

A 2017 failure of a London ambulance dispatch system is believed to have le...

Computer Aided Dispatch outage

A 911 system failure left emergency calls unanswered and is said to have co...

Load balancing videos

This short article and the associated video explain 5 load balancing algori...

Intergraph Computer-Aided Dispatch (I/CAD

Intergraph Computer-Aided Dispatch (I/CAD) is a system offering many of the...

Boolean logic worksheet pack

These three Boolean logic worksheets have exam style questions on logic sta...

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Networking

Click here for recommended AQA A-Level Computer Science textbooks.

4.9.2.1 Network Topology

Network topologies diagram

Network Topologies

BBC Bitesize has clear revision materials for the three main network topologies: star network, bus network, and ring network. As always, their diagrams are very clear and easy to understand, and each topology has a clear table of its advantages and disadvantages.


Updated: 2016-03-27
Network topologies diagram

Network topologies

Network topologies gives a brief over of Star networks, Ring networks, and Bus networks. The diagrams are clear but students will probably need additional resources when studying the advantages and drawbacks of each topology.


Updated: 2016-03-27

4.9.2.2 Types of Networking

4.9.2.3 Wireless Networking