Cambridge IGCSE Computer Science (0478)
Combine understanding of computer systems with algorithm design, programming and logical problem-solving.
2026–2028 examinations
Course structure and assessment routes
- All candidates take both written papers; grades A*–G are available.
Main syllabus content
- Data representation and transmission
- Hardware and software
- Internet, automated and emerging technologies
- Algorithms and problem-solving
- Programming
- Databases
- Boolean logic
Use Syllabus for the topic checklist. Where the qualification offers options, follow your chosen route rather than treating every option as compulsory.
0478 assessment structure
Use the route above to identify which components you take. Marks below are raw marks; the stated weightings determine their contribution to the award.
Paper 1
Computer Systems
- Duration
- 1 hour 45 minutes
- Marks
- 75
- Weighting
- 50%
Topics 1–6; all questions compulsory.
Paper 2
Algorithms, Programming and Logic
- Duration
- 1 hour 45 minutes
- Marks
- 75
- Weighting
- 50%
Topics 7–10; includes a scenario-based question.
Key assessment information
- Calculators are not permitted in either paper. Both are externally assessed; Paper 2 is not an on-computer practical exam.
Official sources and verification
Checked 2026-09-04 against the official 0478 syllabus/specification (PDF). 2026–2028 examinations.
Source PDF pages: 8, 9. PDF page positions may differ from printed page numbers.
IGCSEfy is an independent study aid. Check the full official document and your exam-paper instructions, especially exam-year options, equipment and centre arrangements. Older archive papers may follow an earlier syllabus.