Watson
IBM · February 2011
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Why It Matters
The moment AI entered public consciousness. Watson's Jeopardy! victory in 2011 showed the world that machines could understand and answer complex natural language questions.
Description
The AI system that famously defeated Jeopardy! champions Ken Jennings and Brad Rutter in 2011. Unlike modern language models, Watson used a combination of information retrieval (searching through databases), natural language processing (understanding questions), and machine learning — not a neural network. Despite being pre-deep-learning, it was a landmark moment in AI history.
Notable Milestones
- ▸Defeated Jeopardy! champions Ken Jennings and Brad Rutter
- ▸Applied to healthcare, legal, and financial analysis
- ▸Catalyzed enterprise AI adoption across industries
Key Innovations
Reasoning
ReasoningStructured step-by-step problem solving, often using chain-of-thought or tree-of-thought approaches.