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1、,Unit 23 Text The Disk Operating System (DOS),New Words and Expressions,encounter in5kauntE v. 遭遇, 相遇 spin-off n. 副产品, 抽资脱离 compatible kEm5pAtib(E)l adj. 兼容的 谐调的 boot bu:t v. 导入 n. 靴 flip flip vt. 轻弹, 轻击 option 5RpF(E)n n. 选项, 选择权 prompt prRmpt n. 提示, 付款期限 preface 5prefEs vi. 作序, 开始 n. 前言 default di
2、5fC:lt adj. 不履行的,拖欠的 lay (put) emphasis on (upon) 强调,着重在,Technical Terms,DOS (Disk Operating System ) 磁盘操作系统 PC- DOS (Personal Computer Disk Operating System) 个人计算机磁 盘操作系统 MS（ Microsoft Corporation ） 微软公司的简称 AT&T 美国电话电报公司 XENIX 操作系统 (UNIX 操作系统的一个子集，是Microsoft 专门为高档微机，特别是使用8086，Z8000，M68000，80286和803
3、86处理器的微型计算机开发的。) booting the system 引导系统 disk storage 磁盘存储器 “greater than ”symbol 大于符号 HIMEM 扩充内存管理程序,Notes,1. Some of the more popular micro operating systems are MS-DOS, developed by Microsoft Corporation, CP/M, developed by Digital Research Corporation, and UNIX, developed by AT 在其之后 used with th
4、e IBM PC和 used with IBM是过去分词短语作定语。,3. In practice, these operating systems, which are essentially the same, are referred to simply as DOS, an acronym for disk operating system. 实际上，这些本质上相同的操作系统，简单称为DOS，是磁盘操作系统的首字母缩略词。 该句的主干结构是 these operating systemsare referred to simply as DOS; 其中 which 是非限制性定语从句;
5、 an acronym for disk operating system 是主语补足语 DOS 的同位语。 4. In most micros, this is no more difficult than inserting a DOS disk in a disk drive and flipping the “on” switch. 大多数微机只需将DOS盘插入到磁盘驱动器，然后按一下“ON”开关，非常容易。 no more than 原意为:非常不, 在此句的意思是指整个操作过程都很简单。,5.You can then load your program directly from
6、the hard disk, thereby eliminating the need to insert the program diskette each time you run the program. 你可直接从硬盘调出程序, 因此可省去在每次运行时插入程序软盘的过程。 eliminating the need是现在分词短语作状语； you run the program是省去了when的定语从句； loadfrom 此处译为：从调出。,Exercises I. Try to match the following columns: 1. micro vendor 引导系统 2. D
7、OS 系统命令 3. series of computers 当前驱动器 4. booting the system 微机销售商 5. run a software package 拷贝文件 6. active drive 系列计算机 7. copy files 运行软件包 8. system command 磁盘操作系统,1. 微机销售商 2. 磁盘操作系统 3.系列计算机 4. 引导系统 5. 运行软件包 6. 当前驱动器 7. 拷贝文件 8. 系统命令,II. Choose the one that best completes each of the following stateme
8、nts according to the text: 1. A collection of program modules that control the operation of the computer is _. A. DOS B. application programming C. operating system D. software 2. The best known microcomputer operating system is probably _. A. MS/DOS B. MVS C. VM D. UNIX 3. PC is the acronym for _.
9、A. package computer B. prompt company C. private computer D. personal computer 4. Before you can use a microcomputer, you must load _. A. DOS B. PC C. boot the system D. both A and C,C,A,D,D,5. DOS gives you the_ of entering date and time data. A. choice B. option. Prompt C. prompt D. boot 6. If you
10、 dont intend to use these data in processing, there is no need to enter the data. Here “enter” means _. A. output B. input C. process D. use 7. The system _ or DOS prompt is the operating systems message to you, the user. A. prompt B. option C. informations D. message 8. _can eliminate the need to i
11、nsert the program diskette each time you run the program. A. DOS B. A computer C. The hard disk D. Devices,B,B,A,C,B. Reading New Words and Expressions dynamical dai5nAmikEl adj. 动力(学) virtual 5vE:tjuEl adj. 虚的, 实际上的 allocate 5AlEukeit v. 分派 cooperatively kEu5CpErEtivli adv. 合作地 swap swCp v. 交换 unco
12、mpressed 9QnkEm5prest adj. 未被压缩的,Technical Terms,MS-DOS 微软磁盘操作系统 megabyte (MB) 兆字节 API (Application Programming Interface ) 应用程序界面 programs transparent access 程序透明访问 memory addressable 可寻址的内存 Terminate-and-Stay-Resident (TSR) programs 终止并驻留 程序 a display adapter 显示适配器 screen saver 屏幕保护 HIMEM 扩充内存管理程序
13、,Exercises,Decide whether the following statements are true or false: 1. The Windows environment can provide three kinds of important services. 2. MS-DOS basic Input/Output (I/O) functions are much more comprehensive than those in Windows. 3. Windows can support hundreds of I/O devices through a sin
14、gle set of API functions. 4. The most important application of Windows is to support multitasking.,5. The screen savers can cause problems when running Setup if you are using an MS-DOS screen saver without disabling it before running Setup. 6. Certain display adapters can cause problems with Windows version 3.1. One of the most serious problem is a system failure while running Windows Setup.,F F T F T F,
