Command Line Heroes: Season 3: Talking to Machines

Creating a machine that thinks may have seemed like science fiction in the 1950s. But John McCarthy decided to make it a reality. And he started with a language he called LISP. Colin Garvey describes how McCarthy created the first language for AI. Sam Williams covers how early interest in thinking machines spread from academia to the business world, and how--after certain projects didn't deliver on their promises--a long AI winter eventually set in.