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History of the Personal Computer: Leading up to Intel's 4004, the first commercial microprocessor

The personal computing business as we know it owes itself to an environment of enthusiasts, entrepreneurs and happenstance. The invention of the microprocessor, DRAM, and EPROM integrated circuits would help bring computing to the mainstream. This is the first in a five-part series exploring the history of the microprocessor and personal computing, from the invention of the transistor to modern day chips powering our connected devices.