Computing, Covered - OCR GCSE Computer Science
OCR J277 Paper 1 revision
Revise the Computer systems paper with clear explanations, calculations and practice based on the current OCR specification.
What Paper 1 covers
Systems architecture; memory and storage; networks, connections and protocols; network security; systems software; and ethical, legal, cultural and environmental impacts.
- 80 marks
- 1 hour 30 minutes
- 50% of the GCSE
- No calculator; all questions are compulsory.
How to revise it
Learn the key facts, then use them in calculations, comparisons and longer explanations. Check mistakes and return to the topics that need more work.
- Practise binary and storage calculations without a calculator.
- Explain how a security measure reduces a named threat.
- Use precise technical vocabulary in longer answers.
Try the teaching style
The free revision check includes short Paper 1 questions, while the free Course Guide chapter shows the depth and layout used throughout the reference guide.
- Try the free mixed revision check.
- Read a complete Course Guide chapter.
- Use the full trial to save progress and revisit mistakes.