[dorfuss]

Reminds me of a book and Coursera course called "From NAND to Tetris" by Noam Nissan and Shimon Shocken. You can learn how to build a computer from basic logic gates, the web site below provides a hardware simulator in JAVA and pre-made components.

http://www.nand2tetris.org/

https://mitpress.mit.edu/books/elements-computing-systems