IB Computer Science Topic A1.1: Computer Hardware and Operation Lessons

This lesson delivers structured, step-by-step lessons that guide students through every part of the IB Computer Science (First Exam 2027) syllabus for A1.1 Computer hardware and operation. These lessons simplify complex ideas like algorithm optimization, artificial intelligence, and computational complexity, while worked examples show how to approach IB-style questions.

Designed for both HL and SL learners, RevisionDojo lessons ensure students not only understand the theory but also know how to apply it in IB Paper exam situations.

With clear explanations, active learning checks, and a syllabus-first design, RevisionDojo makes revision less overwhelming and more effective.

A1.1.1 Functions and Interactions of the Main CPU Components

A1.1.2 Role of a GPU

A1.1.3 Differences Between the CPU and GPU (HL only)

A1.1.4 Purposes of Different Types of Primary Memory

A1.1.5 Fetch, Decode, and Execute Cycle

A1.1.6 Process of Pipelining in Multi-Core Architectures (HL only)

A1.1.7 Internal and External Types of Secondary Memory Storage

A1.1.8 Concept of Compression

A1.1.9 Different Types of Services in Cloud Computing

A1 Computer fundamentals4 subtopics

A2 Networks4 subtopics

A3 Databases4 subtopics

A4 Machine learning4 subtopics

B1 Computational thinking1 subtopic

B2 Programming5 subtopics

B3 Object-oriented programming2 subtopics

B4 Abstract data types (HL only)1 subtopic