GateXAIML / Recommended Books
Operating Systems
Why this subject matters: Processes, scheduling, memory management, and concurrency are GATE staples — and understanding them deeply is exactly what separates candidates who can debug a production incident from those who can only write code.
Standard reference
Operating System Concepts
The most widely used OS textbook for GATE — particularly strong on Process Scheduling, Synchronization, and Deadlocks, the three topics that show up most consistently in the exam.
In-depth
Operating Systems: Internals and Design Principles
Goes deeper than most OS textbooks on system calls, CPU scheduling, threads, memory management, and disk/secondary storage — with strong numerical problem sets in the GATE style.
Practice & problems
Operating Systems: Concept Building & Problem Solving Approach
Built specifically around GATE-style problem solving — pairs each concept with the kind of numerical and conceptual questions the exam actually asks.