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OCR Computer Science revision that actually marks you.
Practise real OCR-style questions for both papers, get marked instantly, and see exactly where you're weak.
No email or personal details — you get an assigned nickname like Pluto07.
Paper 1 (Computer Systems) and Paper 2 (Computational thinking, algorithms & programming).
Know straight away if you're right, with the answer and a plain-English explanation for every miss.
Questions built from OCR J277 past papers and mark schemes, so they match how OCR really asks.
Quizzes can weight towards the topics you keep getting wrong.
Scores over time, strong vs weak topics, and whether you're improving.
Short teaching notes on each topic, written from the OCR specification and past papers.
How it works
Pick a paper and the topics you've covered.
Answer a mix of multiple-choice and short-answer questions.
Get your score and review every mistake.
Come back and watch your weak topics turn green.
Kryphos · OCR GCSE Computer Science (J277) · Questions are OCR-style with original wording, never copied.