Unit 1 introduces students to artificial intelligence through real-world systems — what AI is, what it is not, and how it works — using the Input → Process/Model → Output framework as the conceptual anchor for the entire course. Students begin by sorting 12 familiar technologies into AI vs. automation vs. traditional programming, then trace how Netflix, Spotify, and Gmail spam filters actually work. By the end of the unit, students can apply the IPO framework to any AI system, analyze who benefi