OCR · GCSE
182 lessons across 11 units
This is the complete topic map for the OCR GCSE Computer Science course — every unit and topic from the specification in one place: 182 lessons across 11 units, from 1.1 Systems architecture to 2.5 Programming languages and IDEs. 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.
The course is organised into 11 units: 1.1 Systems architecture (16 lessons), 1.2 Memory and storage (33 lessons), 1.3 Computer networks, connections and protocols (32 lessons), 1.4 Network security (13 lessons), 1.5 Systems software (9 lessons), 1.6 Ethical, legal, cultural and environmental impacts (9 lessons), 2.1 Algorithms (16 lessons), 2.2 Programming fundamentals (23 lessons), 2.3 Producing robust programs (16 lessons), 2.4 Boolean logic (6 lessons) and 2.5 Programming languages and IDEs (9 lessons). Together that's 182 lessons — the whole course, with nothing skipped and nothing added.
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.
OCR GCSE Computer Science covers 182 topics across 11 units: 1.1 Systems architecture, 1.2 Memory and storage, 1.3 Computer networks, connections and protocols, 1.4 Network security, 1.5 Systems software, 1.6 Ethical, legal, cultural and environmental impacts, 2.1 Algorithms, 2.2 Programming fundamentals, 2.3 Producing robust programs, 2.4 Boolean logic and 2.5 Programming languages and IDEs. Each topic on this page opens a focused revision lesson.
There are 182 topics in OCR GCSE Computer Science, grouped into 11 units.
Yes — this page lists every unit and topic on the OCR GCSE Computer Science specification, in the order the exam board organises it. Nothing is skipped and nothing is added.