This book, Operating System, is crafted for students pursuing Computer Science, Computer Applications, and Information Technology at undergraduate and postgraduate levels. It explores key topics such asprocess management and system security, offering insights into how operating systems manage resources and enable seamless operations. With a clear and approachable style, this book is an essential resource for understanding the core principles and operations of operating systems.

Salient Features:

Written in a simple and engaging writing style with clear explanations of complex topics.
 Includes detailed discussions on interprocess communication, networking fundamentals,
and file system interface and implementation.
 Covers critical concepts such as process and thread management, CPU scheduling, memory
allocation, deadlocks, and disk management.
 Explains both contiguous and non-contiguous memory allocations, virtual memory, and le
system implementations to provide a thorough understanding of resource management.
 Dedicated chapter on system security emphasizes modern challenges and solutions for
safeguarding operating systems and protecting data integrity.
 Includes exercise questions for each chapter, a glossary, and a question bank at the end of
the book to enhance learning

A.K.R.S. Anusha serves as an Assistant Professor in the Department of Computer
Applications at The American College (Autonomous), Madurai. With extensive teaching
experience spanning 25 years, she has instructed students in both Arts and Science, as well
as Engineering Colleges. Anusha holds degrees in MCA and M.Phil., and has successfully
cleared the National Eligibility Test (NET) for Lectureship in Computer Science and
Applications conducted by the University Grants Commission (UGC) held in December
2012. She achieved University Gold Medal honors during her undergraduate studies.
Recognized for her contributions to education, Anusha received the “Best Teacher Award”
from the Institution of Engineering and Technology (IET) in 2012. Her academic
contributions include publications in journals and presentations at conferences. An author of textbooks such as“Software Engineering,” “Data Communication and Networking,” and “Visual Programming,” she aims to supportthe learning needs of students. Anusha’s areas of interest encompass Data Structures and Algorithms, Software Engineering, and Data Analytics.