Operating System Notes
The notes go into great detail of how operating systems have evolved and what kinds of operating systems exist today. The content ranges from basic-level ideas such as system calls, OS structure, and process management to important topics such as memory management, virtual memory, page replacement algorithms, and the theory that describes how deadlocks work, including detection, recovery, avoidance, and prevention. Both basic concepts and more advanced practice issues are found in the discussion of multiprocessor systems, I/O hardware and software principles, and file system management, including implementation and optimization strategies. This document proves to be very informative in terms of grasping the minute details of modern operating systems.
Author(s): Andrew
109 Pages 
xv6 a simple Unix like teaching operating system
This book contains below topics, Operating system interfaces, Operating system organization, Page tables, Traps and system calls, Page faults, Interrupts and device drivers, Locks, Scheduling, Sleep and wakeup, File system.
Author(s): Russ Cox, Frans Kaashoek, and Robert Morris, MIT CSAIL
116 Pages
Operating System by Bighnaraj Naik
The Notes by Bighnaraj Naik hence, provide a directed discussion of operating systems, beginning with their history, and various types. The paper deals with critical services to an operating system in connection with management of processes, the idea of process synchronization, indepth process management and scheduling, tools and constructs used in processing concurrency, detection of deadlocks, and prevention techniques. The paging technique and virtual memory management form the base of dynamic resource allocation techniques. File systems have also been discussed, they classified into logical and physical file systems with differences in their allocation strategies, so it has provided a profound insight into the theoretical and practical sides of the operating system.
Author(s): Bighnaraj Naik
86 Pages
