Harvard's free programming classes teach you how to think, debug, and adapt in an AI-driven world where knowing code matters more than ever.

Fourth graders participate in an introductory lesson on artificial intelligence during a computer applications class at Dr. Martin Luther King, Jr., School No. 6 in Passaic, N.J., on Oct. 14, 2025.

At a low-key talk for a local professional society in 1964, computer scientist and chemist Gordon Moore laid out a prediction that would define the world of technology for more than 50 years. In the ...

An illustration of a magnifying glass. An illustration of a magnifying glass.