计算机文化34

计算机系统内发生的所有活动）
Chapter 4: Operating Systems and File Management
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4 Operating System Activities
Chapter 4: Operating s and File Management
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4 Operating System Activities
系统）
Section C: File Basics(文件基础) Section D: File Management（文件管理） Section E: Backup Security(备份安全)
Chapter 4: Operating Systems and File Management
Chapter 4 Computer Concepts 2013
Operating Systems and File Management
4 Chapter Contents
Section A: Operating System Basics（操作系统基础） Section B: Today’s Operating Systems（如今的操作
Chapter 4: Operating Systems and File Management
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4 The Boot Process
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4 Section B: Today’s Operating
这些独立运行的程序片断叫作“线程”（Thread），利用它编程的概念就叫作“多线程处理”。 /doc/1712669.html ）
When multiple programs are running, the OS should prevent a memory leak （内存泄漏）—a situation in which instructions and data from one area of memory overflow into memory allocated to another program （在这种情况下，指令和数据会从一个内存区
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4 Section A: Operating System
Basics
Operating System Activities User Interfaces（UI ：用户界面） The Boot Process （启动过程）
Chapter 4: Operating Systems and File Management 4
4 FastPoll True/False Questions
Answer A for True and B for False
041200 A file specification is also called a path. 041300 Windows Explorer is a file management utility. 041400 Hard disks, CDs, and DVDs are formatted into tracks and sectors. 041500 Time Machine is synchronization software used for backup on Macs. 041600 To repopulate a new hard disk from an incremental backup, you have to first restore a full backup. 041700 A boot disk contains a complete copy of your computer’s hard disk as it existed when the computer was new.
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4 Operating System Activities
An operating system is a type of system software that acts as the master controller for all activities that take place within a computer system（操作系统是一种系统软件，起作用是作为管理控制器管理在
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4 Question
042100 A computer handles many tasks simultaneously. Which one of the following refers to the processor’s ability to handle multiple tasks, rather than the operating system’s ability to do so? A. Multi-core B. Multitasking C. Multithreading D. Multiprocessing
The kernel provides essential operating system services（核心程序提供
了基本的操作系统服务）
Your computer’s small bootstrap（引导） program is built into special ROM circuitry housed in the computer’s system unit
Single-user operating system（单用户操作系统） Multiuser operating system（多用户操作系统） Server operating system （服务器操作系统） Desktop operating system （桌面操作系统） Handheld operating system （手持式操作系统）
Multitasking（多任务处理） provides process and memory management services that allow two or more tasks（任务）, jobs（作业）, or programs（程序） to run simultaneously。 /doc/4428489.html Within a single program, multithreading （多线程）allows multiple parts, or threads, to run simultaneously（在一个程序中，
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4 User Interfaces
Menus, submenus, and dialog boxes
Chapter 4: Operating Systems and File Management
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4 The Boot Process（引导过程）
During the boot process, the operating system kernel（核心） is loaded into RAM
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4 User Interfaces
Buttons, menu bars, toolbars, taskbars, and Ribbons
（带）
Chapter 4: Operating Systems and File Management
Chapter 4: Operating Systems and File Management
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4 Operating System Activities
Microsoft Windows offers its users controls to do the following activities:
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4 FastPoll True/False Questions
Answer A for True and B for False
040100 An operating system manages a computer’s resources such as the processor, RAM, and storage space. 040200 Multithreading provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously. 040300 GUI stands for “graphic usability icons.” 040400 A bootstrap program is a popular type of application software. 040500 During a computing session, the operating system is executed from RAM.
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The combination of hardware and software that helps people and computers communicate with each other