operating system concepts essentials by abraham silberschatz

... 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 ... 1INSTRUCTOR’S MANUALTO ACCOMPANY OPERATING-SYSTEM CONCEPTS SEVENTH EDITION Trang 3This volume is an instructor’s manual for the Seventh Edition of System Concepts, by Abraham Silberschatz, Peter Baer ... (the operating system) thathandles all types of errors Also, by having errors processed by theoperating system, processes need not contain code to catch andcorrect all the errors possible on a system

Ngày tải lên: 17/10/2017, 23:16

... thành hay chưa, liệu một byte có sẵn để đọc từ thanh ghi dữ liệu vào hay không và liệu có xảy ra lỗi thiết bị hay không Các thanh ghi dữ liệu thường có kích thước từ 1 đến 4 byte Một số bộ điều khiển ... bộ điều khiển đĩa gửi từng byte đến bộ điều khiển DMA DMA/bus/bộ điều khiển ngắt đĩa xe buýt PCI 2 trình điều khiển thiết bị yêu cầu bộ điều khiển đĩa chuyển các byte C từ đĩa sang bộ đệm tại ... liệu có sẵn nào • Dòng ký tự hoặc khối Thiết bị dòng ký tự truyền từng byte một, trong khi thiết bị khối truyền một khối byte dưới dạng đơn vị Trang 13Hình 13.7 Đặc điểm của thiết bị I/O.599 modem

Ngày tải lên: 28/12/2022, 17:41

... 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 ... (the operating system) thathandles all types of errors Also, by having errors processed by theoperating system, processes need not contain code to catch andcorrect all the errors possible on a system ... hardware Virtual memory and file systems are two such examples of new services provided by an operating system 2.2 List five services provided by an operating system that are designed tomake it

Ngày tải lên: 16/10/2021, 15:40

... 913.9 Silberschatz, 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 ... 1413.14 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005A Kernel I/O Structure Trang 1513.15 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts ... ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Two I/O Methods Trang 2113.21 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Kernel I/O Subsystem

Ngày tải lên: 28/06/2014, 02:20

... Multimedia SystemsTrang 220.2 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Chapter 20: Multimedia Systems Trang 320.3 Silberschatz, Galvin and Gagne ©2005 Operating ... into a smaller form Trang 1020.10 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Operating Systems Issues „ The operating system must guarantee the specific ... guarantees. Trang 1120.11 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Trang 1220.12 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition,

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

... 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 ... 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 ... 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

... 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 ... 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 ... terminated child Trang 13Concepts Silberschatz and Galvin 1999   21.13 Process Control (Cont.) • Processes communicate via pipes; queues of bytes between two processes that are accessed by a file descriptor

Ngày tải lên: 30/01/2020, 00:40

... 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 ... 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 ... (PCB) Trang 4Silberschatz, Galvin and Gagne 2002 4.7 Operating System Concepts CPU Switch From Process to Process Process Scheduling Queues ■ Job queue – set of all processes in the system ■ Ready

Ngày tải lên: 30/01/2020, 00:44

... is OK Trang 13Silberschatz, Galvin and Gagne 2002 11.25 Operating System Concepts File System Mounting ■ A file system must be mounted before it can be accessed ■ A unmounted file system (I.e ... Trang 1Silberschatz, Galvin and Gagne 2002 11.1 Operating System Concepts Chapter 11: File-System Interface ■ File Concept ■ Access Methods ■ Directory Structure ■ File System Mounting ... distributed systems, files may be shared across a network ■ Network File System (NFS) is a common distributed file-sharing method Trang 15Silberschatz, Galvin and Gagne 2002 11.29 Operating System Concepts

Ngày tải lên: 30/01/2020, 00:49

... 1Concepts Silberschatz and Galvin 1999   20.1 Module 20: Security • The Security Problem • Authentication • Program Threats • System Threats • Threat Monitoring • Encryption Trang 2Concepts Silberschatz ... – Changes to system programs: monitor checksum values Trang 9Concepts Silberschatz and Galvin 1999   20.9 Network Security Through Domain Separation Via Firewall Trang 10Concepts Silberschatz ... to be executed by other users • Trap Door – Specific user identifier or password that circumvents normal security procedures – Could be included in a compiler Trang 5Concepts Silberschatz and

Ngày tải lên: 30/01/2020, 00:56

... 37, 122, 14, 124, 65, 67 Trang 3Silberschatz, Galvin and Gagne 2002 13.5Operating System Concepts Trang 4Silberschatz, Galvin and Gagne 2002 13.7Operating System Concepts SSTF (Cont.) SCAN ■ The ... cylinder to the first one Trang 6Silberschatz, Galvin and Gagne 2002 13.11Operating System Concepts Trang 7Silberschatz, Galvin and Gagne 2002 13.13Operating System Concepts C-LOOK (Cont.) Selecting ... Swap Map Trang 10Silberschatz, Galvin and Gagne 2002 13.19Operating System Concepts 4.3 BSD Data-Segment Swap Map Trang 11Silberschatz, Galvin and Gagne 2002 13.21Operating System Concepts RAID

Ngày tải lên: 30/01/2020, 00:59

... UNIX operating systems Trang 8Silberschatz, Galvin and Gagne  2002 5.15 Operating System Concepts Solaris 2 Threads Solaris Process Trang 9Silberschatz, Galvin and Gagne  2002 5.17 Operating System ... Trang 6Silberschatz, Galvin and Gagne  2002 5.11 Operating System Concepts Many-to-Many Model n Allows many user level threads to be mapped to many kernel threads n Allows the operating system ... management done by user-level threads library n Examples - POSIX Pthreads - Mach C-threads Trang 3Silberschatz, Galvin and Gagne  2002 5.5 Operating System Concepts Kernel Threads n Supported by the

Ngày tải lên: 30/01/2020, 01:13

... Like most computer systems, UNIX consists of two separable parts: Trang 4Silberschatz, Galvin and Gagne 2002 A.7Operating System Concepts 4.3BSD Layer Structure System Calls ■ System calls define ... Provided powerful operating-system primitives on aninexpensive platform ■ Small size, modular, clean design Trang 3Silberschatz, Galvin and Gagne 2002 A.5Operating System Concepts UNIX Design ... Trang 1Silberschatz, Galvin and Gagne 2002 A.1Operating System Concepts Module A: The FreeBSD System ■ First developed in 1969 by Ken Thompson and Dennis Ritchie

Ngày tải lên: 30/01/2020, 01:17

... Layered system of modules.• Protected mode — HAL, kernel, executive • User mode — collection of subsystems – Environmental subsystems emulate different operating systems – Protection subsystems ... handle by creating an object by opening an existing one, by receiving a duplicated handle from another process, or by inheriting a handle from a parent process • Each object is protected by an ... messages by pointing to a shred memory section object created for the channel – Third method, call quick LPC is used by graphical display portions of the Win32 subsystem – Trang 22Concepts Silberschatz

Ngày tải lên: 30/01/2020, 01:25

... Replicas must be distinguished from one another by m Andrew distinguishes between client machines Trang 10m The local name space is the root file system of a workstation, from which the shared ... volume Trang 12system for both servers and clients The client cache is a m The status cache is kept in virtual memory to allow rapid servicing of stat (file status returning) system calls ... Trang 1m Example Systems Trang 2operations that forms its client interface m@ A transparent DFS hides the location

Ngày tải lên: 30/01/2020, 01:27

... Trang 2• An operating system executes a variety of programs:– Batch system – jobs– Time-shared systems – user programs or tasks • Textbook uses the terms ... process has finished execution Trang 5Concepts Silberschatz and Galvin 1999   4.5 Process Control Block (PCB) Information associated with each process Trang 8Concepts Silberschatz and Galvin 1999   ... Trang 18– Output data from child to parent (via wait).– Process’ resources are deallocated by operating system • Parent may terminate execution of children processes (abort). – Child has exceeded

Ngày tải lên: 30/01/2020, 01:39

... of processes in their critical sections Trang 5Concepts Silberschatz and Galvin 1999   18.5 DME: Centralized Approach • One of the processes in the system is chosen to coordinate the entry to the ... processes in the system, it can enter its critical section • After exiting its critical section, the process sends reply messages to all its deferred requests Trang 7Concepts Silberschatz and ... critical-concurrently Trang 9Concepts Silberschatz and Galvin 1999   18.9 Three Undesirable Consequences • The processes need to know the identity of all other processes in the system, which makes the

Ngày tải lên: 30/01/2020, 01:40

... Sparc systems, and for PC and PowerMac systems Trang 5Concepts Silberschatz and Galvin 1999   22.5 The Linux System • Linux uses many tools developed as part of Berkeley’s BSD operating system, ... Linux operating system kernel is entirely original, but it can run much existing free UNIX software, resulting in an entire UNIX-compatible operating system free from proprietary code Trang 3Concepts ... space 1 When a process runs a new program with the exec system call 2 Upon creation of a new process by the fork system call Trang 35Concepts Silberschatz and Galvin 1999   22.35 Virtual Memory (Cont.)

Ngày tải lên: 30/01/2020, 01:50

... Trang 12Silberschatz, Galvin and Gagne 2002 15.23 Operating System Concepts The ISO Protocol Layer The ISO Network Message Trang 13Silberschatz, Galvin and Gagne 2002 15.25 Operating System Concepts ... the File Transfer Protocol (FTP) mechanism Trang 3Silberschatz, Galvin and Gagne 2002 15.5 Operating System Concepts Distributed-Operating Systems ■ Users not aware of multiplicity of machines ... remotely, rather than transfer all data locally Trang 4Silberschatz, Galvin and Gagne 2002 15.7 Operating System Concepts Topology ■ Sites in the system can be physically connected in a variety of

Ngày tải lên: 30/01/2020, 01:52