The CPU Article

This is a technical writeup on how the CPU functions, starting with basic circuits and finishing with a simple CPU.

It was written for people who have a genuine curiosity about how computers work at a fundamental level. Most resources on the subject go one of two ways: either they stay so shallow that the CPU still feels like a black box, or they go so deep and book-length that most people never finish them. This one sits in the middle — a ~45 minute read that starts with basic circuits and builds up through logic gates, addition, flip-flops, and memory, all the way to a simple working CPU.