Online Little Man Computer - CPU simulator
Documents
In this section...
CPU Fetch-Decode-Execute Animation
I Belong: encouraging girls into computer science programme
See also...
Topic by Topic Past paper Questions
Careers Information for Pupils
A Level CS: Algorithm Assembly Instructions
Year 10 British Farming Fortnight
Labour Market Information (LMI)
Explore...
Using social media and examinations/assessments
The Wave: the first autocracy lesson, part 1 (clip 2 of 9)
New...
Joint letter from Ofqual and UCAS to students, summer 2025
Pupil Premium Strategy Statement
How Ofcom is helping children to be safer online – a guide for parents
Discover...
GCSE CS LMC Programming ICT Computer Science GCSE Prospectus A Level Computing C# Revision College Key Stage 4 Year 7 Computing Horror Girls A2 Biology LMI Keystage 5 Careers French Mrs Davy Computer
Uh-oh - we were unable to load our website on your browser so we're showing you a plain HTML version.
We use many features found in modern browsers and regrettably yours seems incompatible.
However this legacy version contains (very, very nearly) all the same content. Each page is rendered on our server and doesn't rely on any browser features except the odd font. It doesn't even need Javascript or fancy CSS. It's like being in 1995!
Your browser is reporting itself to us as Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com). Please consider updating your browser to make the most of our website.
If you would like to try our proper website again - you can do so here...