COMS4118OperatingSystemsSpring2005.ppt

COMS 4118Operating SystemsSpring 2005;Course Contents;Logistics;Logistics (continued);Logistics (continued);Chapter 1: Introduction;“I think that there is a world market for five computers” - Thomas J. Watson (1945) ;What is an Operating System?;Why Study Operating Systems?;Goals of This Course;Computer System Components;Abstract View of System Components;Operating System Definitions;Operating Systems Ease the Pain;Why are Operating Systems Difficult to Create and Maintain?;Why are Operating Systems Difficult to Create and Maintain?;A Brief History: Early 1950’s, Mainframes Rule!;Memory Layout for a Simple Batch System;Offline Processing;History: Spooling;Multiprogrammed Systems;Multiprogrammed Batch Systems;Timesharing/Multitasking Systems;Desktop Systems;Parallel Systems;Parallel Systems (Cont.);Symmetric Multiprocessing Architecture;Distributed Systems;Distributed Systems (cont);General Structure of Client-Server;Clustered Systems;Real-Time Systems;Real-Time Systems (Cont.);Handheld Systems;Migration of Operating-System Concepts and Features