计算机英语 学生用书(第二版)习题答案 姜同强 清华大学出版社
计算机英语（第二版）清华大学出版社课后习题答案
计算机英语（第二版）清华大学出版社课后习题答案专业英语课后习题答案Chapter1I. 1.Application software2. -128 1273. system software4. hardware system software system5.microcomputers, minicomputers, mainframe computers, supercomputersII. 1. false 2. false 3. false 4. true 5.trueIII. (2)CPU(3)bit(1)integrated circuit(IC)(4) ASCIIIV. (1)编码技术(2)应用软件(3) 浮点数据(4)分时(5)存储容量VIII．1.By using various coding techniques, groups of bits can be made to represent not only binary numbers but also other discrete symbols通过应用多种编码技术，一组二进制数字不但可以表示二进制数据，而且还可以表示其它的离散符号2.System software includes not only the complex programs used by technicians to create application software in the first place but also the organizational programs needed to start up the computer and govern its use of other programs.系统软件不仅包括技术人员用于创建应用软件的复杂程序，而且还包括用于启动计算机和提供给其他程序使用的管理程序。
3.Data are numbers and other binary-code information that are operated on to achieve required computational results.数据是数字和其他的二进制代码信息，通过处理这些数据得到所需要的计算结果。
计算机英语第二版清华第7单元
Computer Science in EnglishDesigned and Programmed ByJiang TongqiangMiao TianshunTeaching Assisted Courseware1Computer Science in EnglishChapter 7: Applications software2Chapter 7I. Pre-reading Questions1. What is applications software?Reference Key:Application software is the software designed to help you solve problems specific to business or perform specific business tasks. Application software then is the layer of software closest to you. 3Chapter 7I. Pre-reading Questions2. Are there any differences between the systems software and the applications software? Reference Key:(open)4Chapter 7I. Pre-reading Questions3. How many types of applications software do you know?Reference Key:(1) Word processingSpreadsheet applications(3) Personal finance(4) Presentation graphics(5) Database managers(6) Group collaboration(7) Desktop and personal information management(8) Integrated applications(9) Web browsers5过去分词短语designed to help you solve problems…作定语修饰the software。
计算机英语第二版课后习题答案
计算机英语第二版课后习题答案练习答案PART ONE Computer BasicsUnit 1 My ComputerSection A I(Fill in the blanks with the information given inthe text:1( Charles Babbage; Augusta Ada Byron 2( input; output3( VLSI4( workstations; mainframes 5( vacuum; transistors6( instructions; software7( digit; eight; byte8( microminiaturization; chipII(Translate the following terms or phrases from English intoChinese and vice versa:1( artificial intelligence 人工智能2( paper-tape reader 纸空阅读机3( optical computer 光学计算机4( neural network 神经网络5( instruction set 指令集6( parallel processing 平行处理7( difference engine 差分机air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house thefirst element of the environment. (1) the parameters: ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia, hydrogen sulfide, l0ppm, co 0.15%. (2) ventilation natural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materials require higher thermal resistance, good thermal insulation properties, and thicken the North wall must also be taken of thickness and measures such as roof andceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normal lighting,air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house the first element of the environment. (1) the parameters:ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia, hydrogen sulfide, l0ppm, co 0.15%. (2) ventilation natural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materialsrequire higher thermal resistance, good thermal insulation properties, and thicken the North wall must also be taken of thickness and measures such as roof and ceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normal lighting,8( versatile logical element 通用逻辑器件9( silicon substrate 硅基10( vacuum tube 真空管(电子管)11( the storage and handling of data 数据的存储与处理12( very large-scale integrated circuit 超大规模集成电路13( central processing unit 中央处理器14( personal computer 个人计算机15( analogue computer 模拟计算机16( digital computer 数字计算机17( general-purpose computer 通用计算机18( processor chip 处理器芯片19( operating instructions 操作指令20( input device 输入设备III(Fill in each of the blanks with one of the words given in the following list, making changes if necessary:We can define a computer as a device that accepts input, processes data, stores data, and produces output. According to the mode of processing, computers are either analog or digital. They can beclassified as mainframes, minicomputers, workstations, or microcomputers. All else (for example, the age of the machine) being equal, this categorization provides some indication of the computer’s speed, size, cost, and abilities.air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house the first element of the environment. (1) the parameters: ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia,hydrogen sulfide, l0ppm, co 0.15%. (2) ventilation natural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materials require higher thermal resistance, good thermal insulation properties, and thicken the North wall must also be taken of thickness and measures such as roof andceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normal lighting,air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house the first element of the environment. (1) the parameters: ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia, hydrogen sulfide, l0ppm, co 0.15%. (2) ventilationnatural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materialsrequire higher thermal resistance, good thermal insulation properties, and thicken the North wall must also be taken of thickness and measures such as roof and ceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normal lighting,Ever since the advent of computers, there have been constant changes. First-generation computers of historic significance, such as UNIVAC, introduced in the early 1950s, were based on vacuum tubes. Second-generation computers, appearing in the early 1960s, were those in which transistors replaced vacuum tubes. In third-generation computers, dating from the 1960s, integrated circuits replaced transistors. In fourth-generation computers such as microcomputers, which first appeared in the mid-1970s, large-scale integration enabled thousands of circuits to be incorporated on one chip. Fifth-generation computers are expected to combine very-large-scale integration with sophisticated approaches to computing, including artificial intelligence and true distributed processing.IV(Translate the following passage from English into Chinese.A computer system includes a computer, peripheral(外围的)devices, and software. The electric, electronic, and mechanical devices used for processing data are referred to as hardware. Inaddition to the computer itself, the term “hardware” refers to components called peripheral devices air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house the first element of the environment. (1) the parameters: ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia, hydrogen sulfide, l0ppm, co 0.15%. (2) ventilation natural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materials require higher thermal resistance, good thermal insulationproperties, and thicken the North wall must also be taken of thickness and measures such as roof and ceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normallighting,air, keep house air fresh, cooling, moisture, reduce the body temperature of the chicken, which is a measure of the chicken house the first element of the environment. (1) the parameters: ventilation in summer peak demand calculations, 4~5 cubic metres per kilogram of body weight per hour, harmful gas concentration does not exceed 20ppm ammonia, hydrogen sulfide, l0ppm, co 0.15%. (2) ventilation natural ventilation and mechanical ... 5. thermal insulation roof cold season is the region of greatest heat loss, are also hot towel sunlight than any other region, so the roof insulation is the most important region, followed by the walls, if open sheds to make doors and Windows switches freely, and seal well. On most of the walls and roof insulation must be taken or equivalent devices, thermal insulation materials require higher thermal resistance, good thermal insulation properties, and thicken the Northwall must also be taken of thickness and measures such as roof and ceiling canopy. In places with more rain, due the eaves of roofs on both sides extending outward. Pheasants (pheasants) farm building (a) site choose pheasant fields should be selected gaozao terrain, sand texture, well drained, slightly to the South of terrain. Mountain areas should be selected under the sunny, spacious, ventilation, sunshine, where the drainage is good. Pheasant farms should be built in a quiet, safe place, away from residential areas, factories, the main traffic artery, but taking into account feed, transportation problems. A clean water source, water is not contaminated. To have a reliable power supply, not only to maintain normal lighting,that expand the computer’s input, output, and storage capabilities. Computer hardware in and of itself does not provide a particularly useful mind tool. To be useful, a computer requires a set of instructions, called software or a computer program, which tells the computer how to perform a particular task. Computers become even more effective when connected to other computers in a network so users can share information.计算机系统包括计算机、外围设备和软件。
计算机英语第二版译文和答案(1—4单元及第9单元)
《计算机英语》参考译文和练习答案目录第一单元 (2)课文A：计算机概览 (2)第二单元 (4)课文A：计算机硬件 (4)第三单元 (7)课文A：操作系统 (7)第四单元 (10)课文A：编程语言 (10)第九单元 (12)课文A：计算机网络 (12)第一单元课文A：计算机概览一、引言计算机是一种电子设备，它能接收一套指令或一个程序，然后通过对数值数据进行运算或者对其他形式的信息进行处理来执行该程序。
如果没有计算机的发展，现代的高科技世界是不可能产生的。
在整个社会，不同型号和不同大小的计算机被用于存储和处理各种数据，从政府保密文件、银行交易到私人家庭账目。
计算机通过自动化技术开辟了制造业的新纪元，而且它们也增强了现代通信系统的性能。
在几乎每一个研究和应用技术领域，从构建宇宙模型到产生明天的气象报告，计算机无不是必要的工具，并且它们的应用本身就开辟了人们推测的新领域。
数据库服务和计算机网络使各种各样的信息源可供使用。
同样的先进技术也使侵犯个人隐私和商业秘密成为可能。
计算机犯罪已经成为作为现代技术代价组成部分的许多风险之一。
二、历史第一台加法机，数字计算机的先驱，是1642年由法国科学家、数学家兼哲学家布莱斯•帕斯卡设计的。
这个装置使用了一系列有10个齿的轮子，每个齿代表从0到9的一个数字。
轮子互相连接，从而通过按照正确的齿数向前移动轮子，就可以将数字彼此相加。
在17世纪70年代，德国哲学家兼数学家戈特弗里德•威廉•莱布尼兹对这台机器进行了改良，设计了一台也能做乘法的机器。
法国发明家约瑟夫―玛丽•雅卡尔，在设计自动织机时，使用了穿孔的薄木板来控制复杂图案的编织。
在19世纪80年代期间，美国统计学家赫尔曼•何勒里斯，想出了使用类似雅卡尔的木板那样的穿孔卡片来处理数据的主义。
通过使用一种将穿孔卡片从电触点上移过的系统，他得以为1890年的美国人口普查汇编统计信息。
1、分析机也是在19世纪，英国数学家兼发明家查尔斯•巴比奇，提出了现代数字计算机的原理。
计算机专业英语(第二版)参考答案
写在前面的话各位老师：您们好。
欢迎使用劳动版专业英语教材。
如果您在使用中发现问题，或者有任何建议和意见，可与我们联系：联系人：赵硕联系电话：64962011电子邮箱：zhaos@计算机专业英语（第二版）参考答案Unit 1Lesson1Look and LearnA 1 Monitor 显示器 2 Modem 调制解调器 3 System Unit 系统单元，主机4 Mouse 鼠标 5 Speaker音箱 6 Printer 打印机7 Keyboard 键盘B 1.麦克风可以用来刻录声音。
2.操纵杆是为玩游戏而设计的。
3.多数的扫描仪可以既扫描图片又扫描文本。
4.绘图板被用于图形设计。
DialogueA 略B 1. Mary is good at computer.2. Because it hasn’t the computer software system, Mike’s computer can’t work.3. Mike is a computer outsider.Reading179A Input Device: keyboard, mouse, microphone, scanner, graphics tabletOutput Device: monitor, speaker, printerB Input device (输入设备) convert into(把….转变为) output device(输出设备) translate into (翻译成)Lesson 2Look and Learn1 BIOS-ROM 芯片2 Flash memory 闪存3 memory bank内存条4 CMOS setup CMOS 设置DialogueA Install configuration error utility invalidB1.Mary works at PC Support Center.2.Bill should run the CMOS setup utility to solve the problem.ReadingA 1 b 2 a 3 d 4 c 5 eB 1. Random access memory (RAM); RAM is volatile storage because everything in most types of RAM is lost as soon as the computer is turned off.2. Cache memory; Cache memory improves processing by acting as a temporary high-speed holding area between the memory and the CPU.3. Flash RAM; Flash RAM can retain data even if power is disrupted.1804. Read only memory (ROM); ROM chips are not volatile and cannot be changed by the user.1 Floppy disk 软盘2 CD-ROM 光驱3 Hard disk 硬盘4 Flash Disk 闪存盘；u盘 5 mobile hard disk 移动硬盘DialogueB１. Yes 2. Yes 3. No 4. YesReadingA 1 A 2 Bseries prevent unrecoverable comprise dustB concentric181Lesson 4Look and Learn1. CPU slot (CPU插槽)2. Memory slots （内存插槽）3.AGP slot（AGP 插槽）4.PCI slots（PCI插槽）5. Power connector （电源接口）6.Input/Output ports（输入输出端口）DialogueA interface socket battery slot processorB 1.Because the battery of the motherboard is getting low.2. The socket types of both the processor and the motherboard have to be the same for them to work with each other. The motherboard must have updated BIOS in order for the certain CPUs to work right.ReadingA tower medium component expansion serial specializeB 1 No 2 Yes 3 NoUnit 2Lesson1Look and Learn1. desktop2. Pop-up Menu3. Folder4. Screen saverDialogue182B1.His card is an external sound card.2.Windows will look for and install a driver automatically.ReadingA 1. b 2. d 3. c 4. aB1. Operating system recognizes input from the keyboard and sends output to the display screen.2. Operating system keeps track of files and directories on the disk.3. Operating system controls peripheral devices such as disk drives and printers.Lesson2Look and LearnA Word Access Excel PowerPointB 1.Title bar 2.Menu bar 3. Toolbar 4.Row 5. Column 6. Cell 7.Statusbar DialogueA1. word2. icon3. dialog boxB1. NO2. Yes3. YesReadingA command grid software interface interact formulaB 1. a 2. b 3. cLesson3Look and LearnA. PhotoshopB. FlashC. 3DS MAXD. After EffectsDialogue1. web pages2. Flah Player3. Plug-in4. browser183ReadingA visual audio technology interactivity navigationalB 1. B 2.C 3. BLesson4Look and Learn1. carbon copy2. subject3. attachment4.salutationDialogueA 1. Yes 2. NO 3. Yes 4. NoB 1. set up 2. log 3. Outlook ExpressReadingA filter intention instruction confidentialB 1. D 2.C 3. A 4. BUnit 3Lesson1Look and Learnwork interface card2.Hub3. Switch4.Wireless Router5.CableDialogueB 1. NO 2. Yes 3. Yes 4. NOReadingA 1. b 2. d 3. a 4. cB 1. a 2.c 3. bLesson2Look and Learn1841. Domain name2. Browser3. Website4. ProtocolDialogueA 1.ADSL 2. ISP 3. IP and DNS addressReadingA cable upload motorway permanentB 1. c 2. a 3. d 4. bLesson3Look and Learn1. bus2. star3. ring4. treeDialogueA 1.Toplogy 2. star 3. dynamicB 1. Yes 2. NO 3. Yes 4. NOReadingA format device protocol destinationB 1. c 2. a 3. bLesson4Look and Learn1. firewall2. antivirus3. spam4. virusDialogueA 1.Control panel 2. antivirus 3. securityB 1. NO 2. Yes 3. NO 4. YesReadingA hack management maintenance attackB 1. a 2. b185Unit 4Lesson1Look and learn（1）销售副总（2）营销经理（3）销售代表（4）销售助理（5）采买部经理（6）采购员DialogueAB 1. ABC Company and Huaxia Commercial Company2.products design3. configuration and priceReadingA 1.No 2. Yes 3. Yes 4. YesB 1.B 2.B 3.DLesson 2Look and learn1. discount stores2. catalogue3. promotion4. market share Dialogue186187B1. Not at all.a.你怎么啦？有什么问题吗？ 2. What ’s wrong with you?b.期待再次相见。
计算机专业英语(第二版)参考答案
写在前面的话各位老师：您们好。
欢迎使用劳动版专业英语教材。
如果您在使用中发现问题，或者有任何建议和意见，可与我们联系：联系人：赵硕联系电话：64962011电子邮箱：zhaos@计算机专业英语（第二版）参考答案Unit 1Lesson1Look and LearnA 1 Monitor 显示器 2 Modem 调制解调器 3 System Unit 系统单元，主机4 Mouse 鼠标 5 Speaker音箱 6 Printer 打印机7 Keyboard 键盘B 1.麦克风可以用来刻录声音。
2.操纵杆是为玩游戏而设计的。
3.多数的扫描仪可以既扫描图片又扫描文本。
4.绘图板被用于图形设计。
DialogueA 略B 1. Mary is good at computer.2. Because it hasn’t the computer software system, Mike’s computer can’t work.3. Mike is a computer outsider.Reading179A Input Device: keyboard, mouse, microphone, scanner, graphics tabletOutput Device: monitor, speaker, printerB Input device (输入设备) convert into(把….转变为) output device(输出设备) translate into (翻译成)Lesson 2Look and Learn1 BIOS-ROM 芯片2 Flash memory 闪存3 memory bank内存条4 CMOS setup CMOS 设置DialogueA Install configuration error utility invalidB1.Mary works at PC Support Center.2.Bill should run the CMOS setup utility to solve the problem.ReadingA 1 b 2 a 3 d 4 c 5 eB 1. Random access memory (RAM); RAM is volatile storage because everything in most types of RAM is lost as soon as the computer is turned off.2. Cache memory; Cache memory improves processing by acting as a temporary high-speed holding area between the memory and the CPU.3. Flash RAM; Flash RAM can retain data even if power is disrupted.1804. Read only memory (ROM); ROM chips are not volatile and cannot be changed by the user.1 Floppy disk 软盘2 CD-ROM 光驱3 Hard disk 硬盘4 Flash Disk 闪存盘；u盘 5 mobile hard disk 移动硬盘DialogueB１. Yes 2. Yes 3. No 4. YesReadingA 1 A 2 Bseries prevent unrecoverable comprise dustB concentric181Lesson 4Look and Learn1. CPU slot (CPU插槽)2. Memory slots （内存插槽）3.AGP slot（AGP 插槽）4.PCI slots（PCI插槽）5. Power connector （电源接口）6.Input/Output ports（输入输出端口）DialogueA interface socket battery slot processorB 1.Because the battery of the motherboard is getting low.2. The socket types of both the processor and the motherboard have to be the same for them to work with each other. The motherboard must have updated BIOS in order for the certain CPUs to work right.ReadingA tower medium component expansion serial specializeB 1 No 2 Yes 3 NoUnit 2Lesson1Look and Learn1. desktop2. Pop-up Menu3. Folder4. Screen saverDialogue182B1.His card is an external sound card.2.Windows will look for and install a driver automatically.ReadingA 1. b 2. d 3. c 4. aB1. Operating system recognizes input from the keyboard and sends output to the display screen.2. Operating system keeps track of files and directories on the disk.3. Operating system controls peripheral devices such as disk drives and printers.Lesson2Look and LearnA Word Access Excel PowerPointB 1.Title bar 2.Menu bar 3. Toolbar 4.Row 5. Column 6. Cell 7.Statusbar DialogueA1. word2. icon3. dialog boxB1. NO2. Yes3. YesReadingA command grid software interface interact formulaB 1. a 2. b 3. cLesson3Look and LearnA. PhotoshopB. FlashC. 3DS MAXD. After EffectsDialogue1. web pages2. Flah Player3. Plug-in4. browser183ReadingA visual audio technology interactivity navigationalB 1. B 2.C 3. BLesson4Look and Learn1. carbon copy2. subject3. attachment4.salutationDialogueA 1. Yes 2. NO 3. Yes 4. NoB 1. set up 2. log 3. Outlook ExpressReadingA filter intention instruction confidentialB 1. D 2.C 3. A 4. BUnit 3Lesson1Look and Learnwork interface card2.Hub3. Switch4.Wireless Router5.CableDialogueB 1. NO 2. Yes 3. Yes 4. NOReadingA 1. b 2. d 3. a 4. cB 1. a 2.c 3. bLesson2Look and Learn1841. Domain name2. Browser3. Website4. ProtocolDialogueA 1.ADSL 2. ISP 3. IP and DNS addressReadingA cable upload motorway permanentB 1. c 2. a 3. d 4. bLesson3Look and Learn1. bus2. star3. ring4. treeDialogueA 1.Toplogy 2. star 3. dynamicB 1. Yes 2. NO 3. Yes 4. NOReadingA format device protocol destinationB 1. c 2. a 3. bLesson4Look and Learn1. firewall2. antivirus3. spam4. virusDialogueA 1.Control panel 2. antivirus 3. securityB 1. NO 2. Yes 3. NO 4. YesReadingA hack management maintenance attackB 1. a 2. b185Unit 4Lesson1Look and learn（1）销售副总（2）营销经理（3）销售代表（4）销售助理（5）采买部经理（6）采购员DialogueAB 1. ABC Company and Huaxia Commercial Company2.products design3. configuration and priceReadingA 1.No 2. Yes 3. Yes 4. YesB 1.B 2.B 3.DLesson 2Look and learn1. discount stores2. catalogue3. promotion4. market share Dialogue186187B1. Not at all.a.你怎么啦？有什么问题吗？ 2. What ’s wrong with you?b.期待再次相见。
计算机英语(第二版)chapter19 Customer Relationship Management
II. Grammatical Notes to the Text
7. Sales force automation modules in CRM systems help sales staff increase their productivity by focusing sales efforts on the most profitable customers, those who are good candidates for sales and services.
该句可以简写为：Some say that …, and that …。 句中的两个连接代词that分别引导了两个并列的宾语从 句 。 第 一 个 宾 语 从 句 可 以 简 写 为 ： the basis of competition has switched from who … to who … 。 句中的谓语动词短语： switch from … to … 意思是 “从…转换到…”。第二个宾语从句是个简单句。
该 句 的 主 体 结 构 是 ： It requires a clear focus on the service attributes。 此 处 的 主 语 it 指 代 的 是 Customer relationship management 。 句 中 的 两 个 that 引 导 出 两 个 限 定 性 定 语 从 句 ， 修 饰 the service attributes。
该 句 的 主 体 结 构 可 简 写 为 ： Sales force automation modules help sales staff increase their productivity 。 介 词 短 语 by focusing sales efforts 作状语，表示方式。 句 中 的 those 是 customers 的 同 位 语 ， 其 后 的 who引导定语从句修饰those。 more
计算机英语第二版_清华大学_姜同强主编翻译
第1 章计算机系统概述数字计算机也称为电子计算机或计算机．它无处不在．很难发现有哪个领域没有使用计算机．在本章中．我们将介绍数字计算机、数据类型、计算机的发展和计算机分类，1 . 1 数字计算机数字计算机是处理各种计算任务的数字系统。
“数字”的意思是计算机中的信息可由具有部分离散值的变量来表示，这些离散值的内部处理是由具有部分离散状态的部件完成的．例如．十进制数字O , l , 2 ，… 9 ．即提供了10 个离散值。
第一台电子数字计算机产生于20 世纪40年代末，它主要用于数值计算，那时的离散元素即为数字．为了进行数值计算而产生了数字计算机．实际上．如果只使用两种状态．数字计算机的性能将更可靠。
因为部件的物理约束和人们的逻辑处理需要．所以数字计算机使用具有两种值的离散数据．这种数据称为二进制。
数字计算机使用只有数字O 和l 的二进制数据系统．一个二进制数字称作位．在数字计算机中用一组二进制表示信息。
应用各种编码技术．一组二进制数字不但可以表示二进制数据，而且还可以表示其他离散符号．如十进制数字或字母表中的字母．例如ASCII是用7 位二进制数字表示一个字符。
通过合理使用二进制组合和各种编码技术．可产生用于完成各种类型计算的一系列指令。
与基数为10 的十进制数相比．二进制数的基数为2 ．使用了数字O 和1 ．与一个二进制数等值的十进制数可以扩展为包含更多位的二进制数．计算机系统是由硬件系统和软件系统组成的，硬件系统由看得见、摸得着的物理设备构成．如磁盘和屏幕。
软件系统是管理计算机的无形“控制”，是运行在计算机中的所有程序，程序是指令的集台，它告诉硬件应该做什么，通常将计算机硬件分为3 个主要部分：输入和输出设备（I/O 设备）、中央处理器（CPU）和存储器。
在第2 章中对硬件部分进行详细介绍．软件可以按其用途分类。
应用软件是为诸如会计、娱乐和工程领域之类的处理任务而设计的，如果玩过计算机游戏或用字处理软件输入入过文件内容．则用户已经具有使用应用软件的体验。