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Operating system principles

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  • After studying this chapter, you should be able to: Describe the basic elements of a computer system and their interrelationship, eplain the steps taken by a processor to execute an instruction, discuss the evolution of operating systems for early simple batch systems to modern complex systems.

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  • This chapter examines some more advanced concepts related to process management, which are found in a number of contemporary operating systems. We show that the concept of process is more complex and subtle than presented so far and in fact embodies two separate and potentially independent concepts: one relating to resource ownership and another relating to execution.

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  • In this chapter, we examine one of the most important and widely used categories of operating systems: embedded operating systems. The embedded system environment places unique and demanding requirements on the OS and calls for design strategies quite different than that found in ordinary operating systems.

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  • This volume is an instructor’s manual for the Sixth Edition of Operating-System Concepts by AbrahamSilberschatz, Peter Baer Galvin, and Greg Gagne. It consists of answers to the exercises in the parent text. In cases where the answer to a question involves a long program, algorithm development, or an essay, no answer is given, but simply the keywords “No Answer” are added.

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  • Lecture Operating System: Chapter 05 - Input/Output presented Principles of I/O hardware, Principles of I/O software, I/O software layers, Disks, Clocks, Character-oriented terminals, Graphical user interfaces, Network terminals, Power management.

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  • This chapter examines two problems that plague all efforts to support concurrent processing: deadlock and starvation. We begin with a discussion of the underlying principles of deadlock and the related problem of starvation. Then we examine the three common approaches to dealing with deadlock: prevention, detection, and avoidance.

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  • After studying this chapter, you should be able to: Describe the basic concepts of files and file systems, understand the principal techniques for file organization and access, define B-trees, explain file directories, understand the requirements for file sharing.

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  • Lecture "Operating system - Chapter 5: Input/Output" has contents: Principles of I/O hardware, principles of I/O software, I/O software layers, disks, clocks, character - oriented terminals, graphical user interfaces, network terminals, power management.

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  • Linux History Design Principles Kernel Modules Process Management Scheduling Memory Management File Systems Input and Output Interprocess Communication Network Structure Security To explore the history of the UNIX operating system from which Linux is derived and the principles which Linux is designed upon To examine the Linux process model and illustrate how Linux schedules processes and provides interprocess communication To look at memory management in Linux To explore how Linux implements file systems and manages I/O devices...

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  • Background Demand Paging Copy-on-Write Page Replacement Allocation of Frames Thrashing Memory-Mapped Files Allocating Kernel Memory Other Considerations Operating-System Examples Silberschatz, Galvin and Gagne ©2005 .Objectives To describe the benefits of a virtual memory system To explain the concepts of demand paging, page-replacement algorithms, and allocation of page frames To discuss the principle of the working-set model Virtual memory – separation of user logical memory from physical memory....

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  • I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Hardware Operations Streams Performance Explore the structure of an operating system’s I/O subsystem Discuss the principles of I/O hardware and its complexity Provide details of the performance aspects of I/O hardware and software .I/O Hardware Incredible variety of I/O devices Common concepts Port Bus (daisy chain or shared direct access) Controller (host adapter) I/O instructions control devices Devices have addresses, used by Direct I/O instructions Memory-mapped I/O...

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  • (bq) part 2 book "operating systems - internals and design principles" has contents: uniprocessor scheduling, multiprocessor and real time scheduling, file management, i/o management and disk scheduling, embedded operating systems, embedded operating systems,...and other contents.

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  • (bq) part 1 book "operating systems - internals and design principles" has contents: computer system overview, operating system overview, process description and control, memory management, virtual memory; concurrency- deadlock and starvation,...and other contents.

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  • This chapter begins with an examination of the three types of processor scheduling, showing how they are related. We see that long-term scheduling and mediumterm scheduling are driven primarily by performance concerns related to the degree of multiprogramming.

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  • Chapter 3 - Process description and control. This chapter refers to virtual memory. Much of the time, we can ignore this concept in dealing with processes, but at certain points in the discussion, virtual memory considerations are pertinent.

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  • After studying this chapter, you should be able to: Discuss basic concepts related to concurrency, such as race conditions, OS concerns, and mutual exclusion requirements; understand hardware approaches to supporting mutual exclusion; define and explain semaphores; define and explain monitors.

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  • After studying this chapter, you should be able to: Discuss the principal requirements for memory management, understand the reason for memory partitioning and explain the various techniques that are used, understand and explain the concept of paging,...

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  • After studying this chapter, you should be able to: Define virtual memory; describe the hardware and control structures that support virtual memory; describe the various OS mechanisms used to implement virtual memory; describe the virtual memory management mechanisms in UNIX, Linux, and Windows 7.

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  • After studying this chapter, you should be able to: Summarize key categories of I/O devices on computers, discuss the organization of the I/O function, explain some of the key issues in the design of OS support for I/O, analyze the performance implications of various I/O buffering alternatives,...

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  • Operating System: Chapter 5 - Input/Output presents about Principles of I/O hardware, Principles of I/O software, I/O software layers, Disks, Clocks, Character-oriented terminals, Graphical user interfaces, Network terminals, Power management.

    ppt63p cocacola_17 12-12-2015 16 1   Download

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