Many books are there around, on operating system concepts. Students of operating system may not always require the entire stuff packaged in them. They end up in paying for what is not completely of use to them. The purpose of this book is to give them the cream of operating system concepts and make the study of operating system a simple task. This book could have been titled, Operating System Concepts; Made Simple, as well. There are four main components in an operating system. They are process management system, memory management system, IO system and file system. They are not independent components. They interact and cooperate among themselves. The author is trying to give a complete picture of the operating system rather than focusing on algorithms alone. With the help of numerous illustrative diagrams and explanatory text the author has succeeded in his endeavor.
