What resources are there to learn OS basics?

Question

Operating Systems

Hello. For myself, I decided to learn the basics of the OS. Without going into the wilds, of course, I just want to form an understanding of what a "thread", "process" is, how the OS organizes memory, etc. For general education. Can you please tell me some books or articles where I could study this issue?
Thank you.

Answer 1

"Modern Operating Systems" by Andrew Tannenbaum.