Computing, Computer Science, and Information Technology resources for GCSE, IGCSE, IB, and GCE A-Level
Revision notes, activities, lesson plans, teaching ideas, and other resources for GCSE, A-Level, and IB Computer Science teachers and students.
Programming languages - from Scratch to machine code
The CS Field Guide has a very comprehensive guide to different types of pro...
Assembly language simulators
There are several assembly language simulators available for use online. Si...
Little Man Computer (LMC)
The Little Man Computer (LMC) is a software simulator of a simple computer ...
Lesson - Data representation - sound
This download contains all lesson resources necessary to teach students how...
Predictive placement is a feature of some CAD systems that enables more e...
AI to help emergency dispatch phone operators
The Singapore Civil Defence Force (SCDF) may trial an AI system to help tra...
Mobile Data Terminals (MDT)
MDT technology is referenced in the case study booklet, with such systems b...
TriTech Software Systems is a company that specialises in Computer Aided Di...
Spillman are another company with a range of CAD systems. Their Spillman Fl...
5.3 The Internet and the World Wide Web
5.3.1 Internet Structure and Routing
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.
IP addresses and DNS
An overview video covering IP addresses and the workings of DNS.
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.
5.3.3 IP addressing
5.3.4 Accessing the Internet
Network Hardware (NIC, Switch, Router and WAP)
This video is created specifically for the IGCSE Edexcel Computer Science course. It explains the hardware required to connect to a network - be it a Local Area Network or a Wide Area Network such as the Internet. Switches, routers, and MAC addresses are also covered.