The course material is extracted completely from the text book: A. Silberschatz, P. Galvin. Operating Systems Concepts, Seventh Edition, John Wiley & Sons, 2004 (Chapters 1-5, 7-13). From within chapters 1 through 5 and 7 through 13, the following sections are eliminated: Chapter 1: Sections 1.9, 1.10 and 1.12 Chapter 2: Sections 2.8, 2.9 and 2.10 Chapter 5: Sections 5.5, 5.10 and 5.12 Chapter 9: Sections 9.7, 9.8, 9.9 and 9.10 Chapter 11: Section 11.10 Chapter 13: Secgtion 13.6