操作系统精髓与设计原理 第六版 答案 （英文完整版）

SOLUTIONS MANUAL

OPERATING SYSTEMS:

INTERNALS AND DESIGN PRINCIPLES

SIXTH EDITION

NOTICE

Chapter 1 Computer System Overview...............................................................5

Chapter 2 Operating System Overview.............................................................11

Chapter 8 Virtual Memory ..................................................................................51

Chapter 9 Uniprocessor Scheduling...................................................................59

Chapter 10 Multiprocessor and Real-Time Scheduling ..................................72

Chapter 11 I/O Management and Disk Scheduling........................................77

Chapter 12 File Management ..............................................................................83

Chapter 13 Embedded Operating Systems .......................................................87

Chapter 14 Computer Security Threats .............................................................92

Chapter 15 Computer Security Techniques ......................................................94

Chapter 16 Distributed Processing, Client/Server, and Clusters................101

Chapter 17 Networking .....................................................................................104

Chapter 18 Distributed Process Management ................................................107

Appendix A Topics in Concurrency ................................................................110

1.1 A main memory, which stores both data and instructions: an arithmetic and logic

unit (ALU) capable of operating on binary data; a control unit, which interprets the

variables to assign to registers and which to main memory locations. Some high-

level languages, such as C, allow the programmer to suggest to the compiler which

variables should be held in registers. Control and status registers: Used by the

processor to control the operation of the processor and by privileged, operating

system routines to control the execution of programs.

1.3 These actions fall into four categories: Processor-memory: Data may be transferred

from processor to memory or from memory to processor. Processor-I/O: Data may

be transferred to or from a peripheral device by transferring between the processor

and an I/O module. Data processing: The processor may perform some arithmetic

1.5 Two approaches can be taken to dealing with multiple interrupts. The first is to

disable interrupts while an interrupt is being processed. A second approach is to

define priorities for interrupts and to allow an interrupt of higher priority to cause a

lower-priority interrupt handler to be interrupted.

1.6 The three key characteristics of memory are cost, capacity, and access time.

1.7 Cache memory is a memory that is smaller and faster than main memory and that

is interposed between the processor and main memory. The cache acts as a buffer

for recently used memory locations.