IGCSE Computer Science
Cambridge IGCSE Computer Science covers data representation, hardware, software, networks, security, and algorithm design plus programming in a high-level language.
Difficulty
Moderate
Popularity
66%
Past questions
3
Study tips
5
Key Topics
Exam Format & Dates
May/June & October/November, annually
~3 hours across 2 papers
Grades A*–G (or 9–1 in some regions)
C / Grade 4 = standard pass | A*/9 = highest
| Section | Duration | Content | Weight |
|---|---|---|---|
| Paper 1 — Computer Systems | 1 hour 45 minutes | Theory questions | 50% |
| Paper 2 — Algorithms & Programming | 1 hour 45 minutes | Problem solving + pseudocode | 50% |
Exam Breakdown & Insights
Difficulty · Challenging
Popularity score
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Study Tips
- 1
Apply concepts to real-world scenarios; application questions dominate modern exams.
- 2
Work through past papers under timed conditions — familiarity with question style is half the battle.
- 3
Teach the material to someone else (even an imaginary student) — explaining exposes weak spots fast.
- 4
Work through Cambridge past papers and mark schemes — examiner wording is consistent year to year.
- 5
Read examiner reports: they tell you exactly which mistakes cost students marks last session.
Past Exam Questions
Define the key terms associated with Data Representation and explain why they matter in this subject.
Apply the concept of Data Transmission to a realistic scenario, explaining your reasoning step by step.
Evaluate the strengths and limitations of Hardware, using evidence to support a clear, balanced conclusion.
Common Mistakes to Avoid
- ✕
Never practicing under timed conditions before the real exam.
- ✕
Confusing similar key terms that examiners deliberately test against each other.
- ✕
Memorizing definitions without practicing application to scenarios.
Official Resources
Free, official study material for IGCSE Computer Science — always start with the source your exam board publishes.
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