Development of the MOS Technology 6502: a Historical Perspective
TL;DR: The MOS Technology 6502 microprocessor, influential in computing during the late 1970s and 1980s, emerged from a team frustrated with Motorola’s costly 6800. Developed by ex-Motorola engineers at MOS, it featured innovative NMOS technology and shaped various iconic systems like Apple II and Atari. The manufacturing involved complex photolithography, with emphasis on small die size for cost efficiency. Despite challenges, the 6502’s performance and design laid a foundation for modern computing, with notable steps in transistor-level design and circuit simulation integral to its creation.
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