2025 OCR A Level Computer Science Paper 2 and Mark Scheme Combined (H446/02 Algorithms and programming)

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2025 OCR A Level Computer Science Paper 2 and Mark Scheme Combined (H446/02 Algorithms and programming)

Purpose / role: This is the second written component (Component 02) of the OCR A Level Computer Science (specification H446), assessing students’ computational thinking, problem-solving, algorithm design and programming knowledge/skills.
Format: A 2 hours 30 minutes written paper. Calculators are not allowed.
Total marks: 140 marks.
Weighting: This paper contributes 40% of the total A-Level grade (when combined with Paper 1 and the Programming Project).
Content covered (syllabus topics): According to the specification, the topics examined include:
- Elements of computational thinking (e.g. abstract thinking, procedural thinking, logical thinking, thinking ahead, etc
- Problem solving and programming: programming techniques and computational methods
- Algorithms — designing and using algorithms to solve problems, and knowledge of standard algorithms (e.g. sorting, searching, data structures, complexity

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Author	Proficient Academic Tutor
Published	08 Dec 2025
Included files	PDF
OCR A Level Computer Science H446 H446/02 Paper 2 Algorithms and Programming Computational Thinking Programming Techniques Algorithm Design