Cambridge International A Level Computer Science (9618) – Topical Revision Checklist 2026

Track theory, programming and the pre-release / practical skills required for your papers. Confirm the latest syllabus for your exam session.

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TopicSub-TopicResourcesAssessmentsConfidence (1–5)Last ReviewedNext Review
Information representationNumber systems: binary, hexadecimal, denaryStudyQuiz
Information representationBinary addition and two’s complementStudyQuiz
Information representationCharacter, image and sound encodingStudyQuiz
Information representationData compression and encryption basicsStudyQuiz
Information representationLogical operations and truth tablesStudyQuiz
Communication and internet technologiesNetwork topologies and hardwareStudyQuiz
Communication and internet technologiesTCP/IP, protocols and packet switchingStudyQuiz
Communication and internet technologiesClient–server and peer-to-peer modelsStudyQuiz
Communication and internet technologiesCloud computing and virtualisation conceptsStudyQuiz
Communication and internet technologiesSecurity: authentication, firewalls, threatsStudyQuiz
Hardware and virtual machinesCPU architecture: fetch–decode–executeStudyQuiz
Hardware and virtual machinesProcessor components and performanceStudyQuiz
Hardware and virtual machinesMemory: RAM, ROM, cache, secondary storageStudyQuiz
Hardware and virtual machinesI/O devices and interfacesStudyQuiz
Hardware and virtual machinesOperating system functions and schedulingStudyQuiz
Logic circuits and logic gatesBoolean algebra and simplificationStudyQuiz
Logic circuits and logic gatesCombinational logic: half and full addersStudyQuiz
Logic circuits and logic gatesFlip-flops and sequential circuitsStudyQuiz
Logic circuits and logic gatesKarnaugh maps (where required)StudyQuiz
Logic circuits and logic gatesLinking logic to processor componentsStudyQuiz
Processor architecture and assemblyInstruction sets and addressing modesStudyQuiz
Processor architecture and assemblyAssembly language programmingStudyQuiz
Processor architecture and assemblySubroutines, stacks and interruptsStudyQuiz
Processor architecture and assemblyComparing low-level and high-level codeStudyQuiz
Processor architecture and assemblyTracing program executionStudyQuiz
High-level language programmingData types, variables and constantsStudyQuiz
High-level language programmingSelection and iterationStudyQuiz
High-level language programmingModularity: procedures and functionsStudyQuiz
High-level language programmingFile handling and exception handlingStudyQuiz
High-level language programmingAbstract data types: lists, trees, graphsStudyQuiz
Databases (theory)Relational model: keys and normalisationStudyQuiz
Databases (theory)SQL: SELECT, JOIN, aggregate functionsStudyQuiz
Databases (theory)Data integrity and securityStudyQuiz
Databases (theory)Indexing and query optimisation conceptsStudyQuiz
Databases (theory)Comparing database modelsStudyQuiz
Artificial intelligenceSearch algorithms: breadth-first, depth-first, A*StudyQuiz
Artificial intelligenceKnowledge representation and rulesStudyQuiz
Artificial intelligenceMachine learning concepts: supervised vs unsupervisedStudyQuiz
Artificial intelligenceEthical and social implications of AIStudyQuiz
Artificial intelligenceLimitations of AI systemsStudyQuiz

Use with our Past Paper Finder for Computer Science past papers.

Cambridge International A Level Computer Science 9618 revision checklist FAQ

Quick answers about this free revision checklist, how to use it for exam prep, and how it relates to the official syllabus.

What does the 2026 Cambridge A Level Computer Science 9618 syllabus cover?

This revision checklist mirrors the official Cambridge A Level Computer Science 9618 syllabus for the 2026 examination series. Every topic and sub-topic on the page is taken from the published syllabus document, so working through the list in order gives you full coverage of what your exam can assess. It is aligned to the A Level tier expectations. For the authoritative version, always cross-check with the latest syllabus PDF on your exam board's website before your final revision push.

How many topics are on the Cambridge A Level Computer Science 9618 exam?

The number of top-level topic groups varies by subject, but you can see the exact count on this page — each major heading in the checklist corresponds to one syllabus topic group, and each row below it is a syllabus-level sub-topic. Use the confidence column (1–5) to flag which sub-topics need more work, and re-score yourself weekly to track real progress instead of guessing.

How long should I spend revising for Cambridge A Level Computer Science 9618?

12–16 weeks of focused revision, working through one topic group per week with weekly past-paper practice, is a realistic target for most A Level students. Use this checklist to plan your weeks: filter by topics you have rated 1–3 and spend your first revision block there. Subjects with heavy practical or extended-writing components (e.g. sciences, English) need more past-paper time in the final block than the topic-by-topic phase.

What's the best order to revise Computer Science topics?

Revise in roughly the order the syllabus lists the topics — exam boards build later topics on earlier ones, so taking them in syllabus order avoids gaps. Once you have rated every topic, switch to weakest-first: filter the checklist by confidence ≤ 2 and prioritise those topics in your next study block. This is more effective than re-revising topics you already score 4–5 on.

Where can I find Cambridge A Level Computer Science 9618 past papers and mark schemes?

You can find past papers and mark schemes via Tutopiya's Past Paper Finder and on your exam board's official site. Once you have rated each sub-topic on this checklist, attempt past-paper questions on your weakest topics first — practising under timed conditions is the single best predictor of exam performance, more so than re-reading notes.

How do I download this revision checklist as a PDF or CSV?

Use the Download CSV or Print PDF button at the bottom of the checklist. CSV opens in Excel, Numbers or Google Sheets so you can sort by confidence and re-arrange revision order. The PDF is print-ready for offline use. A free Tutopiya account is required for download — this also unlocks the matching topic resources, notes and worked examples on the Learning Portal.

Is this Computer Science revision checklist free to use?

Yes, the checklist itself is free — you can view, score and re-score every topic on this page without an account. The CSV / PDF downloads and access to matching Tutopiya Learning Portal resources require a free account. There is no payment required at any point; teachers and parents can also use this checklist freely with their students.

Does this checklist match the latest Cambridge A Level Computer Science 9618 specification?

Yes. The topics and sub-topics on this page are drawn from the current 2026 Cambridge A Level Computer Science 9618 specification published by Cambridge. Exam boards occasionally tweak weighting or assessment structure mid-cycle, so do a quick sanity-check against the official syllabus PDF when you start your revision and again 4 weeks before the exam.

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