Cambridge (CIE) IGCSE Computer Science specification (0478 & 0984)
Understanding the exam specification is key to doing well in your Cambridge (CIE) IGCSE Computer Science exam. It lays out exactly what you need to learn, how you'll be assessed, and what skills the examiners seek. Whether you're working through the course for the first time or revising for your final exams, the specification helps you stay focused and confident in your preparation.
We've included helpful revision tools to support you in putting the specification into practice. Wherever you're starting from, you'll find everything you need to feel prepared, from the official specification to high-quality resources designed to help you succeed.
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In the next section, you'll find a simplified summary of the official Cambridge (CIE) IGCSE Computer Science specification, along with a breakdown of key topics, assessment structure, and useful study resources. We've also included links to topic-level guides and revision tools to help you put the specification into practice.
Contents
Disclaimer
This page includes a summary of the official Cambridge (CIE) IGCSE Computer Science (0478 & 0984) specification, provided to support your revision. While we've made every effort to ensure accuracy, Save My Exams is not affiliated with the awarding body.
For the most complete and up-to-date information, we strongly recommend consulting the official Cambridge (CIE) specification PDF.
Specification overview
Cambridge IGCSE Computer Science develops learners’ understanding of the principles and practices of computing. The course promotes computational thinking, algorithmic problem-solving and practical programming skills. Students gain insight into how computers work and how software is developed and used in real-world applications. The syllabus encourages critical thinking, creative design and logical reasoning, supporting progression to further studies in computing and related fields.
Subject content breakdown
1. Data representation
- Binary systems, hexadecimal, character encoding
- Binary logic, bitwise operations and truth tables
- Data storage: images, sound and file size calculation
2. Data transmission
- Serial and parallel transmission
- Transmission modes and error-checking methods
3. Data storage
- Primary and secondary storage
- Magnetic, optical and solid-state media
4. Hardware
- Input, output and storage devices
- Central Processing Unit (CPU) and components
- Embedded systems and sensors
5. Software
- Types of software: system, utility, application
- Operating systems and user interfaces
6. The internet and its uses
- Internet structure, cloud computing and network security
- The World Wide Web and internet protocols
7. Automated and emerging technologies
- Robotics, AI, machine learning and automation
8. Algorithm design and problem-solving
- Pseudocode, flowcharts, structure diagrams
- Problem-solving strategies
9. Programming
- Programming concepts: variables, data types, control structures
- Procedures and functions
- Debugging and testing
10. Databases
- Tables, records, fields and primary keys
- Queries, SQL, and database design
11. Boolean logic
- AND, OR, NOT, NAND, NOR, XOR gates
- Logic circuits and simplification
12. Programming languages and translators
- High- vs low-level languages
- Compilation and interpretation
13. Security and ethics
- Cybersecurity risks and protection
- Ethical, legal and environmental concerns
Assessment structure
Paper 1 – Computer Systems
- 1 hour 45 minutes
- 75 marks
- Written paper with short-answer and structured questions
- Assesses theory (content 1–7 and 10–13)
- 50% of the final grade
Paper 2 – Algorithms, Programming and Logic
- 1 hour 45 minutes
- 75 marks
- Written paper with short-answer and problem-solving questions
- Assesses content 8–13 with emphasis on programming logic and algorithms
50% of the final grade
- No coursework or practical programming assessment
- Externally assessed; calculators not permitted
Key tips for success
Doing well in your Cambridge (CIE) IGCSE Computer Science isn't just about how much you study, but how you study. Here are a few proven tips to help you stay on track
- Start with a clear plan: Break the subject into topics and create a revision schedule that allows enough time for each. Start early to avoid last-minute stress.
- Focus on understanding, not memorising: Use our revision notes to build a strong foundation in each topic, making sure you actually understand the material.
- Practise regularly: Attempt past papers to familiarise yourself with the exam format and timing. Mark your answers to see how close you are to full marks.
- Be strategic with your revision: Use exam questions by topic to focus on weaker areas, and flashcards to reinforce important facts and terminology.
- Learn from mistakes: Whether it's from mock exams or practice questions, spend time reviewing what went wrong and why. This helps prevent repeat mistakes in the real exam.
- Stay balanced: Don't forget to take regular breaks, eat well, and get enough sleep, a healthy routine makes revision much more effective.
With the right approach and consistent practice, you'll build confidence and improve your chances of exam success.
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