1. CS50: Introduction to Computer Science: David J. Malan teaches this entry-level 11-week course. Topics include abstraction, algorithms, data structures, encapsulation, resource management, security ...

Every fall, hundreds of students — sometimes as many as 800 — pack into Sanders Theatre for a course that promises to be “an experience,” unlike any other the College has to offer. “This. Is. CS50,” ...

Harvard University Free Courses: Harvard University, ranked fifth among the top universities in the world, aims to make education accessible for all by offering free courses across diverse fields ...