Название: Cracking the Operating Systems Skills
Автор: Sundaram RMD, Shriram K Vasudevan, Abhishek S Nagarajan, B Chella Prabha
Издательство: I.K. International Pvt. Ltd./Dreamtech Press
Год: 2020
Страниц: 232
Язык: английский
Формат: pdf (true), epub
Размер: 10.1 MB

This book has been specifically designed to orient students for the technical interview in Operating System concepts. This book has been written to help students undertake a thorough and objective preparation. The contents have been carefully handpicked from authors’ experience and expertise developed by being either direct witness to the recruitment process, mentoring students in their colleges, myriad discussion with peers who are placement organizers in colleges, hours of studying discussions on the topics in social media, blogs and dedicated web sites, and so it is no wonder that the book is highly focused for interview preparation in Operating System.

Why Operating System? It has been seen that X% of all the technical interviews have Operating Systems as an extra eye along with C programming at heart. Any device or electronic gadget has an operating system running inside. If you read this book as an eBook through a smart phone or a computer/laptop, you shall be using Android or Windows as the base platform. Even a software like Photoshop or programming software like C or C plus plus shall be ported over the operating system. All the application software are installed over the OS.

The book is organized into twelve chapters, covering major subject areas and each chapter covers a number of exercises along with the correct answers. The book requires a basic knowledge of operating systems. As we elucidate later in the book, operating systems conceptual MCQs and problem solving isn’t really suitable for wide-ranging of beginners–though many have succeeded to use it–so the book will presume that the readers of this book have already covered basic concepts with the notions of system calls, file handling, formulae, along with ‘C basics’ and so on.

Chapter 1 is the engine that drives the rest of the document and has all the basics of operating systems covered in it.

Chapter 2 covers operating system structure and services in detail.

Chapter 3 is all about process management which is an integral part of any modern-day operating system. The process management is the most important area and it is one of the highly looked-in areas in the interview. Process knowledge will really ease the interview process. Readers can observe that more number of questions are given from this area in the book.

Chapter 4 discusses multithreading which is the ability of a program or an operating system process to manage its use by more than one user at a time and to even manage multiple requests by the same user without having to have multiple copies of the program running in the computer. This unit also covers scheduling. Threads are smaller units in an OS and they work faster too. Also, context switching is faster as the memory space is shared in threading concepts. Attention has been paid more to technical aspects of threading and questions have been framed based on it.

Chapter 5 covers synchronization which is most important in multithreading as there is a need to synchronize the action of multiple threads and make sure that only one thread can access the resource at a given point in time...