Principles of Operating Systems About the Author Naresh Chauhan is currently working as Professor and Chairman at the Department of Computer Engineering at YMCA University of Science and Technology, Faridabad. A PhD in Internet and Web Technology, Prof. Chauhan has a total work experience of about 22 years, including teaching. Other than teaching, he has also worked for several years in organizations such as Bharat Electronics Ltd and Motorola. Prof. Chauhan has published/presented several research papers in both national and international journals and conferences in the area of Search Engines, Focused Web Crawlers, Test Case Prioritization, and Agile Software Estimation and Agile Testing. His key interest areas are Internet and Web Technology, Software Testing, Operating Systems, and Embedded and Real-time Systems. He is also the author of Software Testing: Principles and Practices [OUP, 2010].