计算机与通信专业英语1(共12章).ppt

Unit 1 Computer Systems,Sec.1-1 Why Should People Care of a Computer System ?,Sec.1-2 What Should People Do with a Computer System ?,Exit,Unit 1 Computer Systems Sec.1-1 Why Should People Care of a Computer System ?,1 Specialized Terms and Phrases,2 Grammar Points,3 Questions,Exit,Return,1 Specialized Terms and Phrases,Return,Exit,car engine汽车发动机3-1 software package软件包3-1 high-level language高级语言3-2 optimum system最佳系统4-4 jargon术语,行话5-1 PCI Video AcceleratorPCI 视频加速器5-2 cache高速缓冲存储器5-2 RAM memory随机存储器6-1 hard drive硬盘6-2 cache memory高速缓冲存储器8-3,1 Specialized Terms and Phrases,multitasking多任务8-3 PCI busPCI 总线8-3 and yet但是4-1 well enough很好地4-2 risk fooling around with冒盲目的风险4-2 nothing more than只不过是4-4 a sense of excitement that is missing 失误的刺激感4-4 in a way在某种程度上5-3 it is scary!真是耸人听闻5-3 pay for为支付6-5,Return,Exit,1 Specialized Terms and Phrases,in the context of从的角度来看7-1 a long-term investment长期投资7-1 informed decision有见地（识）的决定7-3 all about都是9-2 In either case不论那种情况， 两种情况都是9-2 interact with与配合（打交道）9-3,Return,Exit,1 Specialized Terms and Phrases,Return,Exit,2 Grammar Points,We can run standard software packages without understanding exactly how they work; we can program a computer in a high-level language without understanding how; we can purchasewithout understanding 3-1 And yet, there is something missing.Perhaps the package doesnt do exactly what we want, and we dont understand the machine well enough to risk fooling around with the package s options.4-1,Return,Exit,2 Grammar Points,Is this the right combination of features that you need in your computer to have the computer perform the work that you wish to get done ?6-3 But how many people know what the terms“cache memory” or “multitasking” or PCI bus mean or what their importance is ?8-2 Perhaps you are a student to become a computer professional, or perhaps you are simply a user wanting a deeper understanding of what the computer is all about.9-1,Return,Exit,2 Grammar Points,Return,Exit,Return,Exit,3 Questions,What is the immediate benefit when you understand the computer systems operations? Key:it will allow you to use the machine more effectively9-5 What does PCI stand for? Key:Peripheral Control Interface,Return,Exit,3 Questions,Unit 1 Computer Systems Sec.1-2 What Should People Do with a Computer System ?,1 Specialized Terms and Phrases,2 Grammar Points,3 Questions,Exit,Return,1 Specialized Terms and Phrases,computer equipment计算机设备1-4 application program应用程序1-4 integer calculation整数计算3-1 nested loop嵌套循环4-1 index variable指数变量4-1 compiled language汇编语言4-3 interpreted BASIC解释 BASIC 5-2 technical specification技术说明书6-3 peripheral hardware外围硬件6-6 Pentium chip奔腾芯片7-3,Return,Exit,1 Specialized Terms and Phrases,operating system parameters操作系统参数8-5 system security系统安全8-5 configuration配置，安置8-6 hardware and software components 硬件与软件组件9-2 computer architecture计算机结构11-3 be aware of意识到1-1 to make informed decision做出有见地的决定1-3 it is preferable to do更可取的是to do1-5 to communicate with与进行通信(交流)1-7,Return,Exit,1 Specialized Terms and Phrases,to make+sth.+(to)+inf使某物do2-2 to result in带来、导致2-3 be in a better position to do处于更好的位置 in an era of在年代7-4 7-1 a solid foundation坚实的基础11-2 to make it +adj+to +inf使to doadj11-3 In the context of从角度11-4 it may not be necessary to +inf可能不必to do12-2 it is our intention to +inf我们的意图是to do12-4,Return,Exit,1 Specialized Terms and Phrases,Return,Exit,2 Grammar Points,you will be able to use the characteristics of the machine to make your programs operate more effectively2-1 For example, choosing the appropriate data type for a variable can result in significantly faster performance.2-2 Youll be in a better position to determine whether your computer is the right system for a particular job, or whether a different system would be more appropriate.7-1,Return,Exit,2 Grammar Points, Perhaps a workstation with an Alpha CPU is better suited to your application than a personal computer with a Pentium chip.7-2 Youll be better prepared to analyze the best way to provide appropriate facilities to meet the needs of your users.7-3,Return,Exit,2 Grammar Points,In an era of fast-changing technology, youll be more able to differentiate between simple technological obsolescence(技术上的落后) that does not affect your work significantly and major advances that suggest a real need to replace older equipment.7-4 In an era in which technology changes extremely rapidly, the fundamental architecture of the computer rests on (依靠,依赖,相信)a solid foundation that has changed only slightly and gradually over the last 50 years.11-1,Return,Exit,2 Grammar Points,Understanding the foundations of computer architecture makes it possible to flow with (充满)the technological change and to understand these changes in the context of the improvements that they make and the needs that they meet.11-2 It may not be necessary to understand the working of an automobile engine in order to drive a car, but you can bet (敢断定，)that a top-notch race driver knows his or her engine thoroughly and can use it to win races.12-2,Return,Exit,2 Grammar Points,Return,Exit,Return,Exit,3 Questions,Which people are mentioned in the text ? Key:user,programmer,system analyst, system administrator or manager What are respectively the most basic and major job,as a user, a programmer, a analyst, a system administrator or manager ? Key: as a user ,you will be aware of the capabilities, strengths, and limitations of the computer system.,Return,Exit,3 Que