Harvard's introductory computer science course covering programming, algorithms, data structures, memory, databases, web development, and software engineering through lectures and hands-on problem sets.

Free computing courses covering programming, computer science fundamentals, algorithms, internet technologies, and creative coding through interactive lessons and exercises.

MIT's collection of freely available university course materials, including lecture notes, assignments, exams, and videos across computer science and many other academic disciplines.

A hands-on computer science course where learners build a complete computing system from basic logic gates through a CPU, operating system, and software stack.