PPT-What is an Operating System?

The OS is a program P ermit easy access control hardware communicate between user and software user and hardware software and hardware maintain the computer system hardware and software. ECE344. Ding Yuan. Lecture 6: . Synchronization (II) – Semaphores and Monitors. Ding Yuan, ECE344 Operating System. 2. Review of last lecture. Goal: Use . mutual exclusion. to protect . critical sections. 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. By-. Name: Abdul Mobin. KSU ID: . mabdul@kent.edu. Topics to be covered. Introduction to Virtual Machines. History. Introduction to Operating . S. ystem. Basic Functions of Operating System. Overview. This chapter covers:. Differences between system software and application software. Functions of and . general differences between operating . systems. Specific operating systems most widely used today. Eighth Edition. By William Stallings. Operating Systems:. Internals and Design Principles. System Access Threats. Intruders . Malicious Software. Programs that exploit vulnerabilities in computing systems. By Dawson R. . Engler. , M. . Frans. . Kaashoek. ,. James O’Toole Jr.. Presented by Seth Goldstein. EECS 582 – W16. 1. Outline. Traditional Operating System. Exokernel. Implmentation. Kernel Comparisons. 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.. . 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. Chapter 3 Operating Systems Concepts 1 A Computer Model An operating system has to deal with the fact that a computer is made up of a CPU, random access memory (RAM), input/output (I/O) devices, and long-term storage. 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. HISTORY OF OPERATING SYS. TEM. The First Generation (1945-55) . The Second Generation (1955-65) . The Third Generation (1965-1980) . The Fourth Generation (1980-Present). 2. 1.. The First Generation (1945-55) . Beta . Webpage Demonstration. August 24, 2016 | Washington, DC. By . U.S. Energy Information Administration. Key Takeaways. Since mid-2015, EIA has been collecting . near real-time . hourly system demand data from each U.S.