To provide a grand tour of the major operating systems components To provide coverage of basic computer system organization Operating System Concepts – 7th Edition, Jan 12, 2005 Silberschatz, Galvin and Gagne ©2005 .What is an Operating System? A program that acts as an intermediary between a user of a computer and the computer hardware. Operating system goals: Execute user programs and make solving user problems easier. Make the computer system convenient to use. Use the computer hardware in an efficient manner