PPT-Operating Systems Practical Session 12

Deadlocks Deadlocks The ultimate form of starvation A set of processes is deadlocked if each process in the set is waiting for an event that only another process in the set can cause Essential Conditions for Deadlock. 1. 11. I/O Systems. 11.1 Basic Issues in Device Management. 11.2 A Hierarchical Model. 11.3 I/O Devices. 11.4 Device Drivers. Memory-Mapped . vs. Explicit Device Interfaces . Programmed I/O with Polling . 1. 4. The OS Kernel. 4.1 Kernel Definitions and Objects. 4.2 Queue Structures. 4.3 Threads. 4.4 Implementing Processes and Threads. Process and Thread Descriptors. Implementing the Operations. 4.5 Implementing Synchronization and Communication Mechanisms. 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 . Sig Freund. CSC 8320 Fall . 2008. rfreund1@student.gsu.edu. Transparency in Distributed Operating Systems. Evolution of Modern Operating Systems. Centralized operating system. +network access and resource sharing. 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. and File Management. Chapter 4: Operating Systems and File Management. 2. Chapter Contents. Section A: Operating System Basics. Section B: Today’s Operating Systems. Section C: File Basics. Section D: File Management. 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. Chapter 8. File Management. Understanding Operating Systems,7e. Learning Objectives. After completing this chapter, you should be able to describe:. The fundamentals of file management . File-naming conventions, including the role of extensions. 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. . Page 121-131. It’s a Windows World. Chapter 6: Alternative Operating Systems. 2. Page 121. What is the OS sitting on our desks?. Windows > 90%. It’s a Windows World. Chapter 6: Alternative Operating Systems. Introduction. Content from. Operating Systems in Depth Thomas w. . Doeppner. ©2011. Operating Systems Principles & Practices by Anderson and . Dahlin. . 2014. Tannenbaum 2015. Stallings 2015. Seventh Edition. Chapter . 2. Memory . Management: . Simple Systems. Understanding Operating Systems, 7e. 2. Learning Objectives. After completing this chapter, you should be able to describe:. The basic functionality of the four memory allocation schemes presented in . Chapter Contents. Section A: Operating System Basics. Section B: Today’s Operating Systems. Section C: File Basics. Section D: File Management. Section E: Backup Security. Chapter 4: Operating Systems and File Management. 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..