"From NAND to Tetris" is the best resource to understand how computers really work in a fun and engaging way. The authors have two free courses available at Cou

"From NAND to Tetris" is the best resource to understand how computers really work in a fun and engaging way. The authors have two free courses available at Coursera based on the book: https://www.coursera.org/learn/build-a-computer https://www.coursera.org/learn/build-a-computer https://www.coursera.org/learn/ https://www.coursera.org/learn/ Edit: for more real world example look at the Linux kernel source code, files like main.S