Computer Science

Lesson

Choose a course and learn through explanations, worked examples, diagrams, and questions. Study IGCSE, O Level, AS & A Level, AP, or IB Computer Science.

Start here

Select your course, then open a lesson. Each course has its own learning path and references.

Choose a course
Choose your course

College Board · Effective fall 2023

AP Computer Science Principles

Learn the five big ideas through program design, data, AP algorithms, networks, and the effects of computing.

Algorithm examples use AP reference notation, including one-based list indices.

Course lessons

Read the explanations, trace the examples, and check your understanding at the end of each lesson.

References used to build these lessons

We used these official documents as references when building this course's lessons. They are the sources for the syllabus structure and course requirements.

College Board · Effective fall 2023