Harvard's CS50: Introduction to Computer Science

Learn Computer Science with this free online course from Harvard professors. Earn a certificate !

CS50: Introduction to Computer Science course description

This is CS50x, Harvard University’s introduction to the intellectual enterprises of computer science and the art of programming for majors and non-majors alike, with or without prior programming experience.

An entry-level course taught by David J. Malan, CS50x teaches students how to think algorithmically and solve problems efficiently. Topics include abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development. Languages include C, PHP, and JavaScript plus SQL, CSS, and HTML. Problem sets inspired by real-world domains of biology, cryptography, finance, forensics, and gaming.

What you’ll learn

A broad and robust understanding of computer science and programming
How to think algorithmically and solve programming problems efficiently
Concepts like abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development
Familiarity in a number of languages, including C, PHP, and JavaScript plus SQL, CSS, and HTML
How to engage with a vibrant community of like-minded learners from all levels of experience
How to develop and present a final programming project to your peers