OCR A Level Computer Science Past Papers (H446) | Latest Papers and Mark Schemes

OCR A Level Computer Science Past Papers (H446): Latest Papers + Mark Schemes (Official PDFs)

If you’re studying OCR A Level Computer Science (H446), past papers are the quickest way to improve — especially when you mark them properly and fix repeat mistakes.

Below are the latest official OCR PDFs for:

• H446/01: Computer Systems

• H446/02: Algorithms and Programming

June 2024 (H446)

Paper 1: Computer Systems (H446/01)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

Paper 2: Algorithms and Programming (H446/02)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

June 2023 (H446)

Paper 1: Computer Systems (H446/01)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

Paper 2: Algorithms and Programming (H446/02)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

June 2022 (H446)

Paper 1: Computer Systems (H446/01)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

Paper 2: Algorithms and Programming (H446/02)

• Question Paper (PDF)

• Mark Scheme (PDF)

• Examiner’s Report (PDF)

How to use H446 past papers to actually increase your marks

Most students do papers and their score barely changes. The difference is what you do after you finish.

1) Sit it timed (but train smart)

Both H446 papers are long — so build up:

• first run: do 60 minutes, stop, mark it

• next run: do the full paper timed

2) Mark like an examiner

When you mark:

• highlight what the mark scheme actually rewards

• rewrite your answer in mark-scheme style

• for every lost mark, write a one-line “fix rule”

Example fix rules:

• “If it says describe, give the process.”

• “If it says explain, add a reason/impact.”

• “If it’s evaluate, compare both sides + finish with a judgement.”

3) Keep a simple error log (10 minutes)

Create a running list:

• Topic

• What I did wrong

• Correct method / wording

• One mini-question to prove I can do it now

4) Read the examiner report (fastest improvement)

Examiner reports show:

• what high-scoring answers looked like

• the most common mistakes

• where students misread the question

Even 5–10 minutes here is high value.

Paper-by-paper focus (H446)

H446/01 Computer Systems — quickest wins

• write clear, structured explanations (cause → effect)

• learn definitions precisely (protocols, scheduling, memory vs storage, caching, etc.)

• use the scenario details when they’re given (don’t answer generically)

H446/02 Algorithms and Programming — quickest wins

• practise trace tables and dry runs weekly

• write algorithms in steps before coding

• always test with multiple inputs and state expected outputs

• don’t ignore complexity / Big-O style questions: easy marks when you practise them

Want faster improvement?

If you’re doing H446 past papers but not improving, you usually need:

• stronger exam-technique (how OCR awards marks), and

• targeted fixes for the same recurring mistakes.

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