A new generation is uncovering the tiny doodles left by engineers on old microchips
![Kenton Smith designs circuit boards and has long been fascinated by computers. He was examining chips a few years ago when he found one smiling back up at him.](https://media.npr.org/assets/img/2024/04/15/20221206_233711-01_custom-85e74cc03672a9413864423d6c184dd2bbe935e6.jpg)
Engineers left these drawings as a way to sign their work. Many are puns that made them chuckle to themselves. Now social media has rediscovered them and hobbyists try to keep that history alive.
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