IB Computer Science Topic A1.3: Operating Systems and Control Systems 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 A1.3 Operating systems and control systems. 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.

A1.3.1 Role of Operating Systems

A1.3.2 Functions of an Operating System

A1.3.3 Comparison of Different Approaches to Scheduling

A1.3.4 Evaluation of Polling and Interrupt Handling

A1.3.5 Role of the Operating System in Managing Multitasking and Resource Allocation (HL only)

A1.3.6 Use of Control System Components (HL only)

A1.3.7 Control Systems in Real-World Applications (HL only)

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