A Physical Symbol System (PSS) is a concept in artificial intelligence and cognitive science that refers to a system capable of creating, manipulating, and understanding symbols in a physical form. The term was popularized by Allen Newell and Herbert A. Simon in the 1970s as part of their work on human cognition and the foundations of AI. ### Key Characteristics of Physical Symbol Systems: 1. **Symbol Representation**: A PSS uses symbols to represent knowledge and information.
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