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OCR A-Level Computer Science Past Papers

Every OCR H446 paper from June 2017 to June 2025 with its mark scheme. PDFs open in a new tab; save them to print.

Past paper questions by topic2027 exam dates

Paper 1 · Computer Systems

H446/01 · 2 h 30 min · 140 marks
SeriesQuestion paperMark scheme
June 2025PaperMark scheme
June 2024PaperMark scheme
June 2023PaperMark scheme
June 2022PaperMark scheme
June 2021PaperMark scheme
June 2020PaperMark scheme
June 2019PaperMark scheme
June 2018PaperMark scheme
June 2017PaperMark scheme

Paper 2 · Algorithms and Programming

H446/02 · 2 h 30 min · 140 marks
SeriesQuestion paperMark scheme
June 2025PaperMark scheme
June 2024PaperMark scheme
June 2023PaperMark scheme
June 2022PaperMark scheme
June 2021PaperMark scheme
June 2020PaperMark scheme
June 2019PaperMark scheme
June 2018PaperMark scheme
June 2017PaperMark scheme

Using past papers well

  • Start with 2023 and 2024 for the current style of question, then work backwards.
  • Sit each paper in one go under the real time limit of 2 hours 30 minutes.
  • Mark with the mark scheme open and note every point you missed, not just the score.
  • Keep June 2025 for last, as a final mock: it is the closest match to the 2027 exams.
  • Turn weak areas into topic work: questions by topic with self-marking.