OS Concepts Hub

Learn how operating systems really work, one concept at a time.

OS Concepts Hub — learn processes, threads, deadlock, memory, filesystems, IPC, scheduling and networking using quizzes.

How to use OS Concepts Hub

Pick a chapter from the chapter grid, or search for a topic such as deadlock.
Read the short original explainer and the code example for that chapter.
Walk through the numbered mental-model diagram to picture how the concept works.
Answer the quiz questions and read the instant feedback on each answer.
Press Mark chapter complete, then download the chapter notes and move to the next chapter.

Eight original chapters covering processes, threads, deadlock, memory, filesystems, IPC, scheduling, and networking.
Plain-language explainers with a C code example in every chapter.
Numbered mental-model diagrams built with divs for each concept.
Thirty-two quiz questions with instant per-answer feedback and a score.
Chapter completion tracking with a progress bar across all eight chapters.
Downloadable plain-text notes for each chapter.
Visible CC-BY-3.0 attribution to the UIUC CS 341 coursebook on the page.

Yes, unlimited.