Code: The Hidden Language of Computer Hardware and Software cover
Code: The Hidden Language of Computer Hardware and Software
by Charles Petzold
Description: Code: The Hidden Language of Computer Hardware and Software explains the fundamental principles behind computer operations, detailing how bits and gates form the central processing unit to enable complex computing processes
ISBN: 0137909101
Found in 4 comments on Hacker News
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WillAdams · 2025-07-16 · Original thread
While not universal, I do recommend Charles Petzold's _Code_:

https://www.goodreads.com/book/show/44882.Code

which covers things down to a quite low-level and was recently updated:

https://www.amazon.com/Code-Language-Computer-Hardware-Softw...

runjake · 2023-07-28 · Original thread
Maybe start by reading the book Code by Charles Petzold.

https://www.amazon.com/Code-Language-Computer-Hardware-Softw...

erichocean · 2023-01-26 · Original thread
This is written for young people, but still accurate: Code: The Hidden Language of Computer Hardware and Software by Charles Petzold

Link: https://www.amazon.com/Code-Language-Computer-Hardware-Softw...

It's got a very slow, methodical onramp with a lot of diagrams and a light, breezy style. You end up building a (very simple) computer in the end, including instruction processing.