... Trang 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, ... platform for operatingsystem research since many different operating systems may run on onephysical system 2.15 Why is a just-in-time compiler useful for executing Java programs? Answer: Java is an ... functionality associated withthe guest operating system Trang 202.17 The experimental Synthesis operating system has an assembler rated within the kernel To optimize system-call performance,
Ngày tải lên: 17/10/2017, 23:16
... associated withthe guest operating system Trang 2114 Chapter 2 Operating-System Structures2.17 The experimental Synthesis operating system has an assembler rated within the kernel To optimize system-call ... platform for operatingsystem research since many different operating systems may run on onephysical system 2.15 Why is a just-in-time compiler useful for executing Java programs? Answer: Java is an ... files associated with other users A process is also notallowed to access devices directly without operating system interven-tion The second class of services provided by an operating system is toprovide
Ngày tải lên: 16/10/2021, 15:40
Operating System Concepts - Chapter 13: I/O Systems pptx
... ©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 ... 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
Operating System Concepts - Chapter 20: Multimedia Systems pot
... 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 data rate and ... ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Trang 1220.12 Silberschatz, Galvin and Gagne ©2005 Operating System Concepts – 7 th Edition, Jan 2, 2005Requirement of Multimedia Operating ... 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
Ngày tải lên: 28/06/2014, 02:20
Operating System Concepts - Chapter 21: The Linux System pot
... ©2005 Operating System Concepts – 7 th Edition, Feb 6, 2005Components of a Linux System (Cont.) The system libraries define a standard set of functions through which applications interact with ... 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
Operating System Concepts 8th Edition chp 5
... 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
Lecture Operating system concepts - Module 9
... frames Trang 21– low CPU utilization.– operating system thinks that it needs to increase the degree of multiprogramming – another process added to the system • Thrashing a process is busy swapping ... replacement one of its frames – select for replacement a frame from a process with lower priority number Trang 20Concepts Silberschatz and Galvin 1999 9.20 Global vs Local Allocation • Global ... subject to same rules Trang 16• LFU Algorithm: replaces page with smallest count.• MFU Algorithm: based on the argument that the page with the smallest count was probably just brought in and has
Ngày tải lên: 30/01/2020, 00:01
Lecture Operating system concepts - Module 21
... 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 ... 5Concepts Silberschatz and Galvin 1999 21.5 UNIX Design Principles • Designed to be a time-sharing system • Has a simple standard user interface (shell) that can be replaced • File system with ... 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
Ngày tải lên: 30/01/2020, 00:40
Lecture Operating system concepts (Sixth ed) - Chapter 4: Processes
... 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 ... fork system call creates new process ✦ exec system call used after a fork to replace the process’ memory space with a new program Trang 9Silberschatz, Galvin and Gagne 2002 4.17 Operating System
Ngày tải lên: 30/01/2020, 00:44
Lecture Operating system concepts - Module 20
... Trang 1Concepts Silberschatz and Galvin 1999 20.1 Module 20: Security • The Security Problem • Authentication • Program Threats • System Threats • Threat Monitoring • Encryption Trang 2Concepts ... horse) – 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 ... Mainly effect microcomputer systems – Downloading viral programs from public bulletin boards or exchanging floppy disks containing an infection – Safe computing. Trang 6Concepts Silberschatz and
Ngày tải lên: 30/01/2020, 00:56
Lecture Operating system concepts (Sixth ed) - Chapter 5: Threads
... 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 ... system call n Clone() allows a child task to share the address space of the parent task (process) Trang 10Silberschatz, Galvin and Gagne 2002 5.19 Operating System Concepts Java Threads n Java ... 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 to create a sufficient
Ngày tải lên: 30/01/2020, 01:13
Lecture Operating system concepts (Sixth ed) - Module A: The FreeBSD system
... 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 ... A.1Operating System Concepts Module A: The FreeBSD System ■ First developed in 1969 by Ken Thompson and Dennis Ritchie of the Research Group at Bell Laboratories; incorporatedfeatures of other operating
Ngày tải lên: 30/01/2020, 01:17
Lecture Operating system concepts - Module 23
... Layered system of modules.• Protected mode — HAL, kernel, executive • User mode — collection of subsystems – Environmental subsystems emulate different operating systems – Protection subsystems ... for operating system resources • Compatibility — applications that follow the IEEE 1003.1 (POSIX) standard can be complied to run on NT without changing the source code • Performance — NT subsystems ... provides the basic system services – On top of the executive, several server subsystems operate in user mode – Modular structure allows additional environmental subsystems to be added without affecting
Ngày tải lên: 30/01/2020, 01:25
Lecture Operating system concepts (Sixth ed) - Chapter 16: Distributed-file systems
... is the root file system of a workstation, from which the shared name space Trang 11* vnode number — index into an array containing the inodes of files in a single volume Trang 12system for both ... not need to be transparently Trang 4 Accesses are performed on the cached copy + Files identified with one master copy residing at the server + Permit workstations to be diskless + Data can be accessed ... data will be lost whenever a user machine + Server checks whether the local data are consistent with the master copy Trang 6m Remote access on diskless, small-memory-capacity machines should be
Ngày tải lên: 30/01/2020, 01:27
Lecture Operating system concepts - Module 4
... Trang 2• An operating system executes a variety of programs:– Batch system – jobs– Time-shared systems – user programs or tasks • Textbook uses the terms ... thread shares with its peer threads its: – code section– data section– operating-system resources collectively know as a task. • A traditional or heavyweight process is equal to a task with one ... by operating system • Parent may terminate execution of children processes (abort). – Child has exceeded allocated resources – Task assigned to child is no longer required – Parent is exiting Operating
Ngày tải lên: 30/01/2020, 01:39
Lecture Operating system concepts - Module 18
... process with a higher priority number, P i then waits for any of these processes to answer within T. Trang 34Concepts Silberschatz and Galvin 1999 18.34 Bully Algorithm (Cont.) • If no response within ... scheme with the 2PC protocol to obtain a protocol that ensures serializability with no cascading rollbacks Trang 24• Resource-ordering deadlock-prevention – define a global ordering among the system ... resources – Assign a unique number to all system resources – A process may request a resource with unique number i only if it is not holding a resource with a unique number grater than i. – Simple
Ngày tải lên: 30/01/2020, 01:40
Lecture Operating system concepts - Module 22
... 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 ... Trang 11Concepts Silberschatz and Galvin 1999 22.11 Components of a Linux System (Cont.) • The system libraries define a standard set of functions through which applications interact with the
Ngày tải lên: 30/01/2020, 01:50
Lecture Operating system concepts (Sixth ed) - Chapter 15: Network structures
... 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 TCP/IP Protocol ... 4Silberschatz, Galvin and Gagne 2002 15.7 Operating System Concepts Topology ■ Sites in the system can be physically connected in a variety of ways; they are compared with respect to the following criteria: ... Protocol (FTP) mechanism Trang 3Silberschatz, Galvin and Gagne 2002 15.5 Operating System Concepts Distributed-Operating Systems ■ Users not aware of multiplicity of machines Access to remote resources
Ngày tải lên: 30/01/2020, 01:52
Lecture Operating system concepts - Module 15
... issues: Trang 16Concepts Silberschatz and Galvin 1999 15.16 Naming and Name Resolution • Name systems in the network • Address messages with the process-id • Identify processes on remote systems by ... transmitting – When the system is very busy, many collisions may occur, and thus performance may be degraded • SCMA/CD is used successfully in the Ethernet system, the most common network system Several ... message from site A to site B? – Reliability If a link or a site in the system fails, can the remaining sites still communicate with each other? • The various topologies are depicted as graphs whose
Ngày tải lên: 30/01/2020, 01:57
Lecture Operating system concepts (Sixth ed) - Chapter 9: Memory management
... Gagne 2002 9.49Operating System Concepts Example of Segmentation Sharing of Segments Trang 26Silberschatz, Galvin and Gagne 2002 9.51Operating System Concepts Segmentation with Paging – MULTICS ... Galvin and Gagne 2002 9.41Operating System Concepts Shared Pages Example stack,symbol table, arrays Trang 22Silberschatz, Galvin and Gagne 2002 9.43Operating System Concepts User’s View of a ... 12Silberschatz, Galvin and Gagne 2002 9.23Operating System Concepts Paging Example Free Frames Trang 13Silberschatz, Galvin and Gagne 2002 9.25Operating System Concepts Implementation of Page Table
Ngày tải lên: 30/01/2020, 02:00