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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Examples of Local Cryptocurrencies

Digital Money for Local Communities covers three examples of country-wide c...

Hash function A hash function takes arbitrary sized input data (e.g. a fil...

Cryptocurrencies vs regular currencies

What is Bitcoin and How Does it Work? is a high level overview of the Bitco...

Examples of Cryptocurrencies

Bitcoin is by far the most well known cryptocurrency. The Bitcoin website w...

Practice paper 3 exam questions

One of the drawbacks of the yearly case study is that there are no past p...

Emergency Management System Explainer Video

This short video gives an overview of some EMIS features. It includes many ...

Geographic Information Systems (GIS)

For some functionality, an EMIS may also be connected to a GIS (Geographic ...

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...

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4.1 Computational Models

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Computational models

Edexcel GCSE Computer Science: Machines & Computational Models

This video covers computational models. It also includes virtual Machines along with the Sequential, Parallel, and Multi-agent computational models that are included in the Edexcel IGCSE course.


Updated: 2017-11-05
Input process output model

Input-Process-Output (IPO) Model

The Input-Process-Output model is a simple topic but some students sometimes find it confusing. This video gives a good overview of why we think about computer systems in this way. Note that this explanation doesn't include Storage and Communication (as required by some GCSE courses) - instead it includes Storage and Feedback.


Updated: 2018-02-17