Edexcel · GCSE

GCSE Computer Science Topics

151 lessons across 2 units

This is the complete topic map for the Edexcel GCSE Computer Science course — every unit and topic from the specification in one place: 151 lessons across 2 units, from Paper 1: Principles of Computer Science to Paper 2: Application of Computational Thinking. Each topic below opens a focused revision lesson, so revision can start from the course as the exam board organises it — not from a guess about what might come up.

Paper 1: Principles of Computer Science121 lessons

Appendix 2: Flowchart symbols

Paper 2: Application of Computational Thinking30 lessons

Topic 6: Problem solving with programming

What Edexcel GCSE Computer Science covers

The course is organised into 2 units: Paper 1: Principles of Computer Science (121 lessons) and Paper 2: Application of Computational Thinking (30 lessons). Together that's 151 lessons — the whole course, with nothing skipped and nothing added.

How to revise with this page

Little and often beats cramming. One topic a night, done properly — read it, try the questions, check yourself — moves a grade more than a weekend binge the week before the exam. The list above is deliberately complete so you can tick through it a topic at a time.

Start from what's coming up, not from the beginning. If a class test or mock is near, open the unit it covers and work through those topics first. Between assessments, work through units in order — later topics usually build on earlier ones.

For parents:you don't need to know the subject to help. Ask which topic tonight's lesson was, open it here, and let them teach it back to you — explaining something out loud is one of the most effective revision techniques there is. Signed-in students see ticks appear on this page as topics are completed, so progress through the course is visible at a glance.

Common questions

What topics are in Edexcel GCSE Computer Science?

Edexcel GCSE Computer Science covers 151 topics across 2 units: Paper 1: Principles of Computer Science and Paper 2: Application of Computational Thinking. Each topic on this page opens a focused revision lesson.

How many topics are in Edexcel GCSE Computer Science?

There are 151 topics in Edexcel GCSE Computer Science, grouped into 2 units.

Is this the full Edexcel GCSE Computer Science specification?

Yes — this page lists every unit and topic on the Edexcel GCSE Computer Science specification, in the order the exam board organises it. Nothing is skipped and nothing is added.