Operating system : concepts and techniques

The Operating System (OS) is the most essential program of all without which it becomes absolutely cumbersome to work with a computer. It is the interface between the hardware and us (i.e., computer user), making it much easier and more pleasant to use the hardware. Familiarizing ourselves with the operating system and its services helps us to utilize the computer in a more effective manner and to do our jobs well. With this in mind, we need to know the operating system’s services and how to make use of them. The operating system itself has to be written so that it can exploit the hardware in the most efficient way possible. Much effort has been put into this matter. Since the computer was invented in the 1940s, many scientists have strived to make this software user-friendly and efficient for the operation of the hardware. The net result is truly a masterpiece that utilizes a multitude of innovations and the fruit of much hard work.In this book, we first discuss a less clarified aspect of the operating system, namely the way the operating system takes over the hardware and becomes the real internal owner of the computer. This knowledge, plus a macro view of what the operating system does and how it does it, provides an insight and advantage to make better use of the overall facilities of the computer. It also provides the basis for a more comprehensive understanding of the complex aspects of the operating system. Then, we elaborate on concepts, methods, and techniques that are employed in the design of operating systems.

operating System Is The Most Essential Program Of All, Without Which It Becomes Cumbersome To Work With A Computer. It Is The Interface Between The Hardware And Computer Users Making The Computer A Pleasant Device To Use. the Operating System: Concepts And Techniques Clearly Defines And Explains The Concepts: Process (responsibility, Creation, Living, And Termination), Thread (responsibility, Creation, Living, And Termination), Multiprogramming, Multiprocessing, Scheduling, Memory Management (non-virtual And Virtual), Interprocess Communication/synchronization (busy-wait-based, Semaphore-based, And Message-based), Deadlock, And Starvation. Real-life Techniques Presented Are Based On Unix, Linux, And Contemporary Windows. The Book Has Briefly Discussed Agent-based Operating Systems, Macro-kernel, Microkernel, Extensible Kernels, Distributed, And Real-time Operating Systems. The Book Is For Everyone Who Is Using A Computer But Is Still Not At Ease With The Way The Operating System Manages Programs And Available Resources In Order To Perform Requests Correctly And Speedily. High School And University Students Will Benefit The Most, As They Are The Ones Who Turn To Computers For All Sorts Of Activities, Including Email, Internet, Chat, Education, Programming, Research, Playing Games Etc. It Is Especially Beneficial For University Students Of Information Technology, Computer Science And Engineering. Compared To Other University Textbooks On Similar Subjects, This Book Is Downsized By Eliminating Lengthy Discussions On Subjects That Only Have Historical Value.