basic operating system concepts ppt

... Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005A Typical PC Bus Structure Trang 613.6 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, ... Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Trang 813.8 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Interrupts ... Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Interrupt-Driven I/O Cycle Trang 1013.10 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition,

Ngày tải lên: 28/06/2014, 02:20

... Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005 Operating Systems Issues Operating Systems Issues  The operating system must guarantee the specific data ... Multimedia Systems Chapter 20: Multimedia Systems 20.2 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005 Chapter 20: Multimedia Systems Chapter 20: Multimedia Systems ... satisfy the request Operating System Concepts – 7th Edition, Jan 2, 2005 20.14 Silberschatz, Galvin and Gagne ©2005 Figure 20.1 Resources on a file server Operating System Concepts – 7th

Ngày tải lên: 28/06/2014, 02:20

... Trang 1Chapter 21: The Linux SystemTrang 2Chapter 21: The Linux SystemTrang 321.3 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Feb 6, 2005Objectives ... resulting in an entireUNIX-compatible operating system free from proprietary code and management tools Trang 521.5 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Feb 6, ... demand PC and PowerMac systems kernel, 64-bit memory support Trang 721.7 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Feb 6, 2005The Linux System „ Linux uses many

Ngày tải lên: 28/06/2014, 02:20

... versions of Window's operating Systems hay ised preemptive scheduling The Mac OS * operating system for the M also uses preemptive scheduling, previous ns of the Macintosh ones 3 system relied on ... scheduling is the basis o i Be aching the CPU among The operating systems By computer more Brodtictive.In oe độc nã —— system can make the concepts and present several ee ie NHAN „ roblem of ... introduced threads to the process model O i systems that support them, it is kernel-level threads nel roce 2 eee in fact being scheduled by the operating system ae the oS a ee scheduling and thread

Ngày tải lên: 29/04/2017, 10:18

... between a guest operating system and a hostoperating system in a system like VMware? What factors need to beconsidered in choosing the host operating system? Answer: A guest operating system provides ... Distributed-File Systems 121 Chapter 19 Multimedia Systems 127 Chapter 20 Embedded Systems 131 Chapter 21 The Linux System 137 Chapter 22 Windows XP 145 Chapter 23 Influential Operating Systems ... sharing f SMP Used in systems where there are multiple CPU’s each run-ning the same copy of the operating system Communication takesplace across the system bus g Distributed.This system distributes

Ngày tải lên: 17/10/2017, 23:16

... swapped Trang 28Concepts Silberschatz and Galvin 1999   21.28 System Data Segment • Most ordinary work is done in user mode; system calls are performed in system mode. • The system and user phases ... Berkeley Fast File System, which increased speed, and included new features – New directory system calls – truncate calls – Fast File System found in most implementations of UNIX Trang 48Concepts Silberschatz ... priority given to making system interactive, and providing facilities for program development Trang 8• System calls define the programmer interface to UNIX • The set of systems programs commonly

Ngày tải lên: 30/01/2020, 00:40

... 2002 4.9 Operating System Concepts Ready Queue And Various I/O Device Queues Representation of Process Scheduling Trang 6Silberschatz, Galvin and Gagne 2002 4.11 Operating System Concepts Schedulers ... Communication ■ Communication in Client-Server Systems Process Concept ■ An operating system executes a variety of programs: ✦ Batch system – jobs ✦ Time-shared systems – user programs or tasks ■ Textbook ... exiting ✔Operating system does not allow child to continue if its parent terminates ✔Cascading termination Trang 10Silberschatz, Galvin and Gagne 2002 4.19 Operating System Concepts Cooperating Processes

Ngày tải lên: 30/01/2020, 00:44

... these two structures are kept on tapes Operating System Concepts 11.11 Silberschatz, Galvin and Gagne 2002 A Typical File-system Organization Operating System Concepts 11.12 Silberschatz, Galvin ... point Operating System Concepts 11.25 Silberschatz, Galvin and Gagne 2002 (a) Existing (b) Unmounted Partition Operating System Concepts 11.26 Silberschatz, Galvin and Gagne 2002 Mount Point Operating ... next rewrite n n = relative block number Operating System Concepts 11.7 Silberschatz, Galvin and Gagne 2002 Sequential-access File Operating System Concepts 11.8 Silberschatz, Galvin and Gagne

Ngày tải lên: 30/01/2020, 00:49

... Authentication Program Threats System Threats Threat Monitoring Encryption 20.1 Silberschatz and Galvin 1999  The Security Problem • Security must consider external environment of the system, and protect ... and Galvin 1999  System Threats • • Worms – use spawn mechanism; standalone program • Viruses – fragment of code embedded in a legitimate program – Mainly effect microcomputer systems – Downloading ... set-uid programs – Unauthorized programs in system directories – Unexpected long-running processes – Improper directory protections – Improper protections on system data files – Dangerous entries in

Ngày tải lên: 30/01/2020, 00:56

... connection Operating System Concepts 13.24 Silberschatz, Galvin and Gagne 2002 Network-Attached Storage Operating System Concepts 13.25 Silberschatz, Galvin and Gagne 2002 Storage-Area Network Operating ... Illustration shows total head movement of 236 cylinders Operating System Concepts 13.6 Silberschatz, Galvin and Gagne 2002 SSTF (Cont.) Operating System Concepts 13.7 Silberschatz, Galvin and Gagne 2002 ... Illustration shows total head movement of 208 cylinders Operating System Concepts 13.8 Silberschatz, Galvin and Gagne 2002 SCAN (Cont.) Operating System Concepts 13.9 Silberschatz, Galvin and Gagne 2002

Ngày tải lên: 30/01/2020, 00:59

... file system hierarchy Any operating system needs to save numerous files: from system configuration files, to log files or user files etc. In general, each operating system uses its own file system ... GNUFDLã PID_00148393 17 Basic GNU/Linux 2. Basic concepts and commands 2.1. Introduction In this section we will learn the basic ideas and instructions needed for moving around the system. If we are ... have on the system appropriately, so that we can have more than one operating system installed on the same disk, for instance. The df command shows us, for each unit mounted on the system, the...

Ngày tải lên: 08/03/2014, 23:20

... network operating system. Just as a computer cannot operate without an operating system, a network of computers cannot operate without a network operating system. Every network operating system ... network operating system s manufacturer, a desktop computer’s networking software can be added either to the computer’s own operating system or be integrated with it. Network operating system ... mathematical calculation. A network operating system must also support multiple processors, clusters of disk drives, and data security features. Finally, a network operating system must be reliable and...

Ngày tải lên: 09/12/2013, 17:15