operating system concepts pdf for gate

... concurrently open files in a system Operating System Concepts – 7th Edition, Feb 11, 2005 A.43 Silberschatz, Galvin and Gagne ©2005 File -System Control Blocks Operating System Concepts – 7th Edition, ... swapped Operating System Concepts – 7th Edition, Feb 11, 2005 A.28 Silberschatz, Galvin and Gagne ©2005 System Data Segment Most ordinary work is done in user mode; system calls are performed in system ... functions through system calls Systems programs: use the kernel-supported system calls to provide useful functions, such as compilation and file manipulation Operating System Concepts – 7th Edition,...

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... 80% to foreground in RR 20% to background in FCFS Operating System Concepts – 7th Edition, Feb 2, 2005 5.23 Silberschatz, Galvin and Gagne ©2005 Multilevel Queue Scheduling Operating System Concepts ... } Operating System Concepts – 7th Edition, Feb 2, 2005 5.32 Silberschatz, Galvin and Gagne ©2005 Operating System Examples Solaris scheduling Windows XP scheduling Linux scheduling Operating System ... performance of each algorithm for that workload Queueing models Implementation Operating System Concepts – 7th Edition, Feb 2, 2005 5.40 Silberschatz, Galvin and Gagne ©2005 5.15 Operating System...

Ngày tải lên: 28/06/2014, 02:20

... the system to enter a deadlock state and then recover Ignore the problem and pretend that deadlocks never occur in the system; used by most operating systems, including UNIX Operating System Concepts ... that a system will never enter an unsafe state Operating System Concepts - 7th Edition, Feb 14, 2005 7.19 Silberschatz, Galvin and Gagne ©2005 Safe, Unsafe , Deadlock State Operating System Concepts ... claimed a priori in the system Operating System Concepts - 7th Edition, Feb 14, 2005 7.22 Silberschatz, Galvin and Gagne ©2005 Resource-Allocation Graph Operating System Concepts - 7th Edition,...

Ngày tải lên: 28/06/2014, 02:20

... in Domaini can invoke on Objectj Operating System Concepts – 7th Edition, Apr 11, 2005 14.9 Silberschatz, Galvin and Gagne ©2005 Access Matrix Operating System Concepts – 7th Edition, Apr 11, ... Delete, Copy Operating System Concepts – 7th Edition, Apr 11, 2005 14.13 Silberschatz, Galvin and Gagne ©2005 Access Matrix of Figure A With Domains as Objects Figure B Operating System Concepts ... Matrix with Copy Rights Operating System Concepts – 7th Edition, Apr 11, 2005 14.15 Silberschatz, Galvin and Gagne ©2005 Access Matrix With Owner Rights Operating System Concepts – 7th Edition,...

Ngày tải lên: 28/06/2014, 02:20

... return 0; } Operating System Concepts – 7th Edition, Jan 10, 2005 15.11 Silberschatz, Galvin and Gagne ©2005 Hypothetical Stack Frame After attack Before attack Operating System Concepts – 7th ... strcpy(buffer,argv[1]); return 0; } } Operating System Concepts – 7th Edition, Jan 10, 2005 15.9 Silberschatz, Galvin and Gagne ©2005 Layout of Typical Stack Frame Operating System Concepts – 7th Edition, ... Man-in-the-middle attack Session hijacking Operating System Concepts – 7th Edition, Jan 10, 2005 15.5 Silberschatz, Galvin and Gagne ©2005 Standard Security Attacks Operating System Concepts – 7th Edition, Jan...

Ngày tải lên: 28/06/2014, 02:20

... 62 Activity 9.1: Identify Operating System Requirements Exercise 1: Identifying an Operating System for a Scenario (10 minutes) ! Identify the operating system requirements Participate ... primarily for running complex spreadsheets Data on these computers is proprietary and confidential B A set of servers to operate mission-critical accounting and the inventory system for a manufacturing ... Participate in small groups as assigned by the instructor Read each scenario below Identify what operating system best meets the needs of the scenario Write your answers below After completing the above...

Ngày tải lên: 21/12/2013, 06:16

... features of an operating system are and what an operating system does for the user We include coverage of both traditional PC and server operating systems, as well as operating systems for mobile ... operating system via an interrupt, a trap, or a system call System calls provide the means for a user program to ask the operating system to perform tasks reserved for the operating system on ... structure of a clustered system 1.4 Operating- System Structure 19 operating system job job job job Max Figure 1.9 Memory layout for a multiprogramming system 1.4 Operating- System Structure Now that...

Ngày tải lên: 16/02/2014, 22:58

... an Operating System? I Mainframe Systems I Desktop Systems I Multiprocessor Systems I Distributed Systems I Clustered System I Real -Time Systems I Handheld Systems I Computing Environments Operating ... computers) Operating System Concepts 1.3 Silberschatz, Galvin and Gagne 2002 Abstract View of System Components Operating System Concepts 1.4 Silberschatz, Galvin and Gagne 2002 Operating System ... processors ✦ Small display screens Operating System Concepts 1.21 Silberschatz, Galvin and Gagne 2002 Migration of Operating- System Concepts and Features Operating System Concepts 1.22 Silberschatz,...

Ngày tải lên: 19/03/2014, 13:41

... toán tương tự Banker Gọi Word Finish vector có chiều dài m n tương ứng (a) Work = Available (b) For i = 1,2, …, n if Allocationi ≠ then Finish[i] = false else Finish[i] = true 2.Tìm số i cho:...

Ngày tải lên: 13/05/2014, 00:27

... platform for operating system research since many different operating systems may run on one physical system 12 Chapter Operating- System Structures 3.14 Why is a just-in-time compiler useful for ... system If the system does not complete a task in a certain time frame, it may cause a breakdown of the entire system it is running Therefore when writing an operating system for a real-time system, ... need for an operating system to make efficient use of the computing hardware When is it appropriate for the operating system to forsake this principle and to “waste” resources? Why is such a system...

Ngày tải lên: 28/06/2014, 00:20

... User mode — collection of subsystems Environmental subsystems emulate different operating systems Protection subsystems provide security functions Operating System Concepts – 7th Edition, Feb ... caching for the entire I/O system Supports both synchronous and asynchronous operations, provides time outs for drivers, and has mechanisms for one driver to call another Operating System Concepts ... 2000 Architecture Operating System Concepts – 7th Edition, Feb 11, 2005 C.8 Silberschatz, Galvin and Gagne ©2005 System Components — Kernel Foundation for the executive and the subsystems Never paged...

Ngày tải lên: 28/06/2014, 02:20

... Chapter 1: Introduction What Operating Systems Do Computer -System Organization Computer -System Architecture Operating- System Structure Operating- System Operations Process Management Memory ... completely in memory Operating System Concepts – 7th Edition, Jan 12, 2005 1.25 Silberschatz, Galvin and Gagne ©2005 Memory Layout for Multiprogrammed System Operating System Concepts – 7th Edition, ... user request An operating system is interrupt driven Operating System Concepts – 7th Edition, Jan 12, 2005 1.12 Silberschatz, Galvin and Gagne ©2005 Interrupt Handling The operating system preserves...

Ngày tải lên: 28/06/2014, 02:20

... Operating- System Structures Operating System Services User Operating System Interface System Calls Types of System Calls System Programs Operating System Design and Implementation Operating System ... Machines Operating System Generation System Boot Operating System Concepts – 7th Edition, Jan 14, 2005 2.2 Silberschatz, Galvin and Gagne ©2005 Objectives To describe the services an operating system ... processes, and other systems To discuss the various ways of structuring an operating system To explain how operating systems are installed and customized and how they boot Operating System Concepts – 7th...

Ngày tải lên: 28/06/2014, 02:20

... Program counter CPU registers CPU scheduling information Memory-management information Accounting information I/O status information Operating System Concepts - 7th Edition, Feb 7, 2006 3.7 Silberschatz, ... loaded into it UNIX examples fork system call creates new process exec system call used after a fork to replace the process’ memory space with a new program Operating System Concepts - 7th Edition, ... parameters, and peforms the procedure on the server Operating System Concepts - 7th Edition, Feb 7, 2006 3.40 Silberschatz, Galvin and Gagne ©2005 Execution of RPC Operating System Concepts - 7th...

Ngày tải lên: 28/06/2014, 02:20

... Linux Threads Java Threads Operating System Concepts – 7th edition, Jan 23, 2005 4.2 Silberschatz, Galvin and Gagne ©2005 Single and Multithreaded Processes Operating System Concepts – 7th edition, ... UNIX Mac OS X Operating System Concepts – 7th edition, Jan 23, 2005 4.6 Silberschatz, Galvin and Gagne ©2005 Multithreading Models Many-to-One One-to-One Many-to-Many Operating System Concepts – ... Green Threads GNU Portable Threads Operating System Concepts – 7th edition, Jan 23, 2005 4.8 Silberschatz, Galvin and Gagne ©2005 Many-to-One Model Operating System Concepts – 7th edition, Jan 23,...

Ngày tải lên: 28/06/2014, 02:20

... Initialization code ( ….) { … } … } } Operating System Concepts – 7th Edition, Feb 8, 2005 6.31 Silberschatz, Galvin and Gagne ©2005 Schematic view of a Monitor Operating System Concepts – 7th Edition, Feb ... that invoked x.wait () Operating System Concepts – 7th Edition, Feb 8, 2005 6.33 Silberschatz, Galvin and Gagne ©2005 Monitor with Condition Variables Operating System Concepts – 7th Edition, ... next-count ; } Operating System Concepts – 7th Edition, Feb 8, 2005 6.40 Silberschatz, Galvin and Gagne ©2005 Synchronization Examples Solaris Windows XP Linux Pthreads Operating System Concepts –...

Ngày tải lên: 28/06/2014, 02:20

... routine Operating system needed to check if routine is in processes’ memory address Dynamic linking is particularly useful for libraries System also known as shared libraries Operating System Concepts ... m-n n For given logical address space 2m and page size 2n Operating System Concepts – 7th Edition, Feb 22, 2005 8.21 Silberschatz, Galvin and Gagne ©2005 Paging Hardware Operating System Concepts ... address dynamically Operating System Concepts – 7th Edition, Feb 22, 2005 8.15 Silberschatz, Galvin and Gagne ©2005 HW address protection with base and limit registers Operating System Concepts – 7th...

Ngày tải lên: 28/06/2014, 02:20

... devices Explain the performance characteristics of mass-storage devices Discuss operating- system services provided for mass storage, including RAID and HSM Operating System Concepts – 7th Edition, ... flexible Operating System Concepts – 7th Edition, Jan 1, 2005 12.10 Silberschatz, Galvin and Gagne ©2005 Disk Scheduling The operating system is responsible for using hardware efficiently — for the ... into drive or storage array Operating System Concepts – 7th Edition, Jan 1, 2005 12.4 Silberschatz, Galvin and Gagne ©2005 Moving-head Disk Machanism Operating System Concepts – 7th Edition, Jan...

Ngày tải lên: 28/06/2014, 02:20

... Chapter 13: I/O Systems I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Hardware Operations Streams Performance Operating System Concepts – 7th Edition, ... 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 Operating System Concepts ... mechanism also used for exceptions Operating System Concepts – 7th Edition, Jan 2, 2005 13.8 Silberschatz, Galvin and Gagne ©2005 Interrupt-Driven I/O Cycle Operating System Concepts – 7th Edition,...

Ngày tải lên: 28/06/2014, 02:20