Mark Zuckerberg is an American computer programmer, entrepreneur, and philanthropist. He is the founder, chairman, and CEO of Meta Platforms (formerly Facebook), a major social media platform. Zuckerberg was born in White Plains, New York, in 1984, and studied computer science at Harvard University before founding Facebook in 2004. He later dropped out of Harvard to focus on the company, which has grown to become one of the largest social networks in the world.