PPT-FUNCTIONS OF OPERATING SYSTEMS

Interfaces Memory Management Security Utility Interrupt Handling Security Login back upsystem restore utility software JOB SCHEDULING FCFS fist come first served RR or round robin every user gets a small amount of time with the processor before it goes onto the next user multi access OS . 1. 7. Physical Memory. 7.1 Preparing a Program for Execution . Program Transformations . Logical-to-Physical Address Binding. 7.2 Memory Partitioning Schemes. Fixed Partitions . Variable Partitions. 1. 10. File Systems. 10.1 Basic Functions of File Management. 10.2 Hierarchical Model of a File System . 10.3 User’s View of Files. Logical File Organization. Operations on Files. 10.4 . File Directories. Principles and Practice. Tom Anderson. How This Course Fits in the UW CSE Curriculum. CSE 333: Systems Programming. Project experience in C/C++. How to use the operating system interface. CSE 451: Operating Systems. 1. 6. Deadlocks. 6.1 Deadlocks with Reusable and Consumable. . Resources. 6.2 Approaches to the Deadlock Problem . 6.3 A System Model . Resource Graphs . State Transitions. Deadlock States and Safe States . Operating Functions. • Room set temperature (T set). • Room ambient temperature (T . amb. ) . Temperature . Parameters. Operating Functions. After powered on, no matter when the compressor is started, the time interval between two startups cannot be less than 3 minutes.. 1. 8. Virtual Memory. 8.1 Principles of Virtual Memory . 8.2 Implementations of Virtual Memory . Paging. Segmentation. Paging With Segmentation. Paging of System Tables. Translation Look-aside Buffers . 1. 5. Process and thread scheduling. 5.1 Organization of Schedulers . Embedded and Autonomous Schedulers . . 5.2 Scheduling Methods . A Framework for Scheduling . Common Scheduling Algorithms . Chapter . 7. Overview. Define System Software. Identify the Types of Systems Software. Describe Operating System Functions. Summarize the PC Startup Process. Identify Types of Operating Systems. Explain the Purpose of Utilities. 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. Dr . Damitha. . Karunaratna. . University of Colombo school of computing. Topics to discuss. What is an operating system(OS)?. Main objectives of an OS. Main functions of an OS. Evolution of OS.. History and Hardware. 1: Operating Systems Overview. 2. This is the simplest animal with a “brain”. Caenorphabditis elegans. C. elegans.  is one of the simplest organisms with a nervous system. This system comprises 302 neurons the pattern of which has been comprehensively mapped, in what is known as a connectome. . Introduction. Content from. Operating Systems in Depth Thomas w. . Doeppner. ©2011. Operating Systems Principles & Practices by Anderson and . Dahlin. . 2014. Tannenbaum 2015. Stallings 2015. Development of Computers. 1. st. Generation computers (1940-1956). Used vacuum tubes.. Vacuum tubes are electronic devices that control the flow of electrons.. Had no operating systems – the user programmed the computer by physically entering the computer and programming by hand. Operating systems (OS) can help computer users do many things, like managing and manipulating files and folders.. Operating systems also provide users the ability to control hardware components of a computer and its peripheral devices, like printers and scanners..