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

CommandPoint by Northrop Grumman offers a range of CAD systems for various ...

CAD+911 System

TriTech Software Systems is a company that specialises in Computer Aided Di...

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...

Resources discount offer

5.3 The Internet and the World Wide Web

Click here for recommended Edexcel GCSE Computer Science textbooks.

5.3.1 Internet Structure and Routing

Packets, Routing and Reliability

The Internet: Packets, Routing and Reliability

This is an excellent video which clearly explained how data is split into packets which are then routed across the Internet. The animated diagrams are particularly useful for helping students visualise how packets can take different routes across the Internet in response to faults or heavy traffic.

Updated: 2016-10-17
IP addresses and DNS

IP addresses and DNS

An overview video covering IP addresses and the workings of DNS.

Updated: 2016-10-17

5.3.2 The World Wide Web


Edexcel GCSE Computer Science: The Internet & the Web

The internet and the world wide web is closely related to, and builds upon, topic Networks. This video covers all of the theory for this component, including HTML and CSS. Of course, practical activities are also essential to understand these last two topics.

Updated: 2016-10-17