Indeed. It starts from first principles, assuming the reader doesn't know anything about computers or even electronics. The final chapters are about coding.

Your guide could actually serve as an addendum to the book. Based on the title of your guide, I was expecting something more like Code, but now having read your guide, it's more of an introduction to operating systems with a particular focus on Linux and the CPU/memory aspects. Well done.

I'm going to +1 this book but I also think this book would electrify you, as it did me:

https://en.wikipedia.org/wiki/The_Information:_A_History,_a_...

I’ll +1 this too - it’s very good and he’s a good teacher, it’s enjoyable to read.