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CS with ZAKFIRST EDITION§13.1B§13.2R§13.3B§14.1C§14.2R§15.1C§15.2B§16.1R§16.2B§17.1R§18.1R§19.1B§19.2O§20.1B§20.2BBook 3 · 9618 Paper 3Advanced TheoryFor Cambridge International A Level Computer Science (9618) · sections 13–20Zafar Ali Khan “ZAK”Every block is a syllabus section, sized by the marks it earns on the real papers · O R C B = Occasional · Regular · Core · Banker

The cover is this book's Exam Heat — data as of 2026-10-06.

In preparationA2 · 9618 Paper 3

Book 3

Advanced Theory

The A2 theory paper made calm: floating point by ZAK's booklet method, Boolean algebra line by line, BNF, AI graphs.

Chapters
8
Sections
§13–20
Ready to read
1 of 8
Short code
B3

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Print edition

Printed in colour, 19 × 24.6 cm

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Contents

Bars show the marks a Paper 3 usually gives each chapter (Statometer). Chapter 13 is free to read.

  1. 13
    Data Representation

    §13.1 · §13.2 · §13.3

    Banker · ≈ 18.2 m · →Free
  2. 14Regular · ≈ 7.5 m · → Writing
  3. 15Core · ≈ 13 m · → Writing
  4. 16
    System Software

    §16.1 · §16.2

    Core · ≈ 12.2 m · → Writing
  5. 17
    Security

    §17.1

    Occasional · ≈ 4.3 m · → Writing
  6. 18Regular · ≈ 5.5 m · → Writing
  7. 19
    Computational thinking and Problem-solving

    §19.1 · §19.2 · Theory — the code is in Book 4

    Banker · ≈ 39.8 m · → Writing
  8. 20
    Further Programming

    §20.1 · §20.2 · Theory — the code is in Book 4

    Banker · ≈ 52.5 m · → Writing
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