CPU components and interaction
Explore the control unit, ALU, registers, buses and the fetch–decode–execute cycle through interactive simulations and exam practice.
01 / LESSON LIBRARY
IBDP Computer Science HL + SL
A structured lesson library for first assessment 2027. Every lesson combines precise explanation, visual models, embedded labs, retrieval practice and exam-focused application.
01 / LESSON LIBRARY
Explore the control unit, ALU, registers, buses and the fetch–decode–execute cycle through interactive simulations and exam practice.
Representation, computer architecture, operating systems and the systems that make computation possible.
Protocols, layered models, security, performance and the real decisions behind connected systems.
Algorithms, data structures, program construction, testing and problem-solving through Python and Java labs.
Extended conceptual and programming work clearly separated for Higher Level learners.
NEXT OPTIMAL ACTION