OCR GCSE Computer Science topics: free practice questions and papers

626 exam-style questions plus unlimited generated ones, all with mark schemes.

1Computer systems (Paper 1) Practise all
- 1.1Systems architecture Practise all
  - 1.1.1Architecture of the CPU
  - 1.1.2CPU performance
  - 1.1.3Embedded systems
- 1.2Memory and storage Practise all
  - 1.2.1Primary storage (RAM, ROM, cache, virtual memory)
  - 1.2.2Secondary storage
  - 1.2.3Units and capacity
  - 1.2.4Data storage Practise all
  - 1.2.5Compression
- 1.3Networks, connections and protocols Practise all
  - 1.3.1Networks and topologies Practise all
  - 1.3.2Wired and wireless networks, protocols and layers Practise all
- 1.4Network security Practise all
  - 1.4.1Threats to computer systems and networks
  - 1.4.2Identifying and preventing vulnerabilities
- 1.5Systems software Practise all
  - 1.5.1Operating systems
  - 1.5.2Utility software
- 1.6Ethical, legal, cultural and environmental impacts Practise all
  - 1.6.1Impacts of digital technology Practise all
2Algorithms and programming (Paper 2) Practise all
- 2.1Algorithms Practise all
  - 2.1.1Computational thinking
  - 2.1.2Designing, creating and refining algorithms Practise all
  - 2.1.3Searching and sorting algorithms Practise all
- 2.2Programming fundamentals Practise all
  - 2.2.1Programming fundamentals Practise all
  - 2.2.2Data types and casting
  - 2.2.3Additional programming techniques Practise all
- 2.3Producing robust programs Practise all
  - 2.3.1Defensive design
  - 2.3.2Testing
- 2.4Boolean logic Practise all
  - 2.4.1Logic gates, diagrams and truth tables
- 2.5Programming languages and IDEs Practise all
  - 2.5.1Languages and translators
  - 2.5.2The Integrated Development Environment
- Paper 2 Section B practice: design, write, test and refine

Stuck? Get 1-to-1 help. Chhetri Academy tutors GCSE and A level Maths and Science online, with a free 30-minute trial lesson.

Book a free trial