Claude Fable 5.2 Implements Transistor-Level Intel 4004 Emulator

An AI system implemented a complete transistor-level emulator of the Intel 4004 microprocessor based on mask-layer tracings and photomicrographs. The simulator models 2,242 transistors as switches and runs against a conventional emulator to verify instruction compatibility, though it does not attempt to simulate analogue effects or real-world clock speeds. Open article →