PPT-Operating System

A program that controls and supports the usage of computer systems Usage Users of a computer system programs use memory use CPU time use IO devices human users. 1. Hugh C. Lauer. Xerox Corporation. Palo Alto, Californi. a. Roger M. Needham. Cambridge University. Cambridge, England. Proc. Second International Symposium on Operating Systems, IRIA, Oct. 1978. A program that controls the execution of application programs. An interface between applications and hardware. 2. Operating System Objectives. Convenience. Makes the computer more convenient to use. Efficiency. Real Time OS. Batch OS. Time Sharing OS. Why do we have different Operating Systems . Common types of Operating Systems . The Operating System . The OS is responsible for all the functions of hardware and also software. Eighth Edition. By William Stallings. Operating Systems:. Internals and Design Principles. System Access Threats. Intruders . Malicious Software. Programs that exploit vulnerabilities in computing systems. J. Holvikivi 2013. Software Categories. System. Software. Application. Software. The Operating System. Operating. System. GUI. Operating Systems. 2.. 4. Algorithms – basis of software. A sequence of steps that directs the execution of a task. Silberschatz. et all, 2009. Modern Operating Systems by . Tannenbaum. and . Bos. 2015. Operating Systems by Nutt 2004. Motivation. Distributed system . is collection of loosely coupled processors interconnected by a communications network. The programs that control and maintain the operation of the computer and its devices. The two parts of system software are the Operating System (OS) and utility programs.. Operating system (OS) (sometimes called the platform) coordinates all activities among computer hardware resources, applications and the user.. Contents. Operating system. Windows. Apple. Linux. Operating System. Operating system – a program that runs on a computer and controls the hardware. Trend – strong graphical user interface . Users use a mouse to click on pictures or icons . . Chapter 2 Operating Systems Structures. Dr. Frank . Li. Review: What does an Operating System do?. Coordinator. :. Manages all resources. Settles conflicting requests for resources. Prevent errors and improper use of the computer. System Principles . Peter Reiher. . Outline. Administrative materials. Introduction to the course. Why study operating systems?. Basics of operating systems. Administrative Issues. Instructor and TAs. By: Lecturer . Raoof. . Talal. 1.1 What are the Operating Systems. ?. An . operating system . is a program that manages the computer hardware. It also acts as an intermediary between the computer user and the computer hardware. CPSC/ECE 3220 Spring . 2023. Lecture Notes. OSPP Chapter 1. (adapted by Mark Smotherman from Tom Anderson’s slides on OSPP web site). Chapter 1. Operating system definition. Software to manage a computer’s resources for its users and applications. Lecture . 2. C. Operating System Structures . 2. References for . Lecture:. Abraham . Silberschatz. , Peter Bear Galvin and Greg Gagne, Operating System Concepts, 9th Edition, . Chapter . 2. . Contents of Lecture. By: Elham Sunbu. OUTLINES. What is Operating Systems ??. Types of computers in the . network. Features of operating systems . Types of Operating Systems. Networks Operating Systems . Review of LAN and WAN.