Every connected device on your desk, from a smart plug to a fitness band to a hobbyist ESP32 board, runs on a descendant of one tiny chip that was never meant to change the world. In 1971, Intel released the 4004, the first commercially available microprocessor. It was not built for computers, ...
Source: [Dev.to](https://dev.to/fluidwire/the-first-microprocessor-was-built-for-a-calculator-bl7)