Operating System - Win32 : https://github.com/Greenie0701/Roadmaps/blob/main/Operating_system_win32.md

Learn CPP - https://www.learncpp.com/

Compiler Design by Sorav Bansal Part 1 - https://iitd.github.io/col728/

Compiler Design(Code Optimizations) by Sorav Bansal Part 2 - https://iitd.github.io/col729/