Excel in iGCSE Computer Science with Targeted Practice
Revise iGCSE Computer Science with practice on programming, data representation, hardware, and computational thinking.
Content reviewed February 2026 · Aligned to current specifications
About iGCSE Computer Science
iGCSE Computer Science introduces students to the fundamental principles of computing, including computational thinking, programming, data representation, hardware, software and networking. Offered by Cambridge International, the syllabus is designed to develop problem-solving skills through both theoretical understanding and practical programming.
Assessment consists of written papers testing theory and a programming-focused component. The theory paper covers topics such as binary and hexadecimal representation, logic gates, network topologies, databases and cybersecurity. The programming component may be a pre-release task or written pseudocode questions, depending on the specific syllabus variant.
iGCSE Computer Science is excellent preparation for International A-Level Computer Science and is increasingly valued by universities and employers worldwide. It develops logical thinking, algorithmic problem-solving and an understanding of how digital systems work, skills that are relevant across every industry.
Topics Covered
Exam Boards
iGCSE Computer Science is available from these exam boards
How UpGrades Helps
Adaptive Practice
Questions adapt to your level in Computer Science, focusing on the topics where you need the most improvement.
Spaced Repetition
Review Computer Science topics at optimal intervals to maximise long-term retention for your iGCSE exam.
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Study Tips for Computer Science
- ✓ Practice writing algorithms in pseudocode regularly. iGCSE Computer Science papers require you to write and trace through algorithms without access to a computer.
- ✓ Master binary, hexadecimal and denary conversions until they are automatic. These appear in almost every exam paper and are straightforward marks once the method is secure.
- ✓ Build small programs to solve problems (sorting, searching, validation) as hands-on coding reinforces your understanding of programming concepts far more effectively than reading alone.
- ✓ Create a glossary of key terms and definitions. iGCSE Computer Science has a large technical vocabulary that you need to use precisely in exams.
Exam Tips for iGCSE Computer Science
- ✓ When writing pseudocode, use clear variable names and include comments. iGCSE examiners can only award marks if your logic is understandable from what you have written.
- ✓ In trace table questions, work through each line of code systematically and record every variable change. Rushing through these leads to avoidable errors.
- ✓ For theory questions about networking or security, give specific technical answers rather than general descriptions. Name protocols, describe processes and explain mechanisms.
Frequently Asked Questions
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Useful Resources
Computer Science at other levels: GCSE Computer Science · A-Level Computer Science · International A-Level Computer Science
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