计算机专业英语(第3单元)
计算机专业英语课件Unit03
பைடு நூலகம் 1.1 Section A: Web Apps and Mobile Apps
• V. Translate the following passage into Chinese
• How Should Schools Deal with Internet Plagiarism?
• Teachers have several tools to catch plagiarists, including a variety of Internet-based services, such as Turnitin, that compare suspected papers to papers found on the Internet and produce an originality report highlighting text that may have been copied. Some instructors, however, are reluctant to investigate the integrity of a students work and possibly ruin an academic career.
1.1 Section A: Web Apps and Mobile Apps
• Notes
• [3] App Store是iTunes Store 中的一部分，是 iPhone、iPod Touch、iPad以及Mac的服务软件 ，允许用户从iTunes Store或Mac App Store浏览 和下载一些为iPhone SDK或Mac开发的应用程序 。
1.2 Section B: Cloud Software
• Words
Unit Three Computer Software 计算机专业英语课件
Unit Three Computer Software
Unit Three Computer Software
• 本单元主要介绍计算机相关软件知识，软 件主要包含系统软件和应用软件两大类， 本单元着重介绍了常用的操作系统如 windows,Linux，及他们之间的比较，并 介绍了最新windows7的有关知识。
Unit Three Computer Software
• Passage One System Software • Passage Two Application Software • Passage Three Comparisons of Various Operating
System • Passage Four Windows 7 Operating System:
• Windows：Windows gets its name because of its ability to run multiple applications at the same time, each in its own window. Windows offers graphical user interface (GUI), presents the user with graphic images of computer functions and data. It provides a standard mechanism for copying or moving information from one program to another. This mechanism, called the clipboard, means that information created in one context is instantly reusable in another, you don't need to reenter information or work with clumsy datatransfer utilities. Windows：之所以称为窗口是因为它具有能同时运行多个
计算机专业英语Unit3
Section 2 Passages
பைடு நூலகம்
Section 3 Skill in Focus
•
Section 4 Extended Reading
Unit 3 Operation System
Section 1 Situational Dialogue
System Crash 1、在使用计算机的过程中，你遇到过系统崩溃的情况吗， 简单描述一下。
• • • •
Unit 3 Operation System
Section 2 Passage A： Categories of Operating System
1、你所知道的操作系统有哪些 2、你觉得未来操作系统的发展趋势是什么
Unit 3 Section 2 Passage A
• OS • software • application program • resource • error • batch processing • real-time • multi-tasking • multi-user • distributed • time sharing • desktop
• •
• •
Unit 3 Section 1
•
Zhang Ning: Well, there might many causes for system crash. One of them is software. The simplest operation like installing and uninstalling might cause a crash in system. Problems within the system may also do that, so you have to be very careful when deleting DLL files, modifying Windows registry, or upgrading the operating system. Another cause is the hardware problem. Have you tried backing up the files? It would be a great help in system restoration when the problem doesn’t lie in the hardware. Cheng Hong: The service personnel installed a ghost program for me when I bought the computer. Will I lose the data in my hard disk if it is restored? Qian Liang: Not except the data on C: drive, where files on your desktop or in My Documents are stored. You may move them into other locations with a bootable disk or under DOS if there are any. Cheng Hong: There are a lot of learning materials in My Documents and on the desktop. Would you please help me transfer them? It might save me the trouble of calling for customer services, and what’s more important, I’d learn a lot from you. Qian Liang: No problem.
精品课件-精品课件--计算机专业英语(王莹)-unit3
计算机专业英语
Computer English
主编：王莹 王月 戴赟
副主编：
西安电子科技大学出版社
目
Unit 1 Computer Hardware
录
Unit 2 Computer Software
CONTENTS
Unit 3 Computer Network
Unit 4 Multimedia
3. Listen to the dialogue and choose the best responses to what you hear. 5. A. Maybe.
B. The same to you.
C. Where are you going?
6.
D. OK. I’ll visit my parents. A. Sorry, I’m a stranger here.
and
7 of the world, or for no apparent reason at all. Don’t be too 8 when your baby cries and you aren’t able to console him or her 9 :
crying is one way babies shout out stimuli when they're 10 .
3. L1i.stAe.n It’o mthfelydiinaglobgaucekatnodmocrhrooows.e the best responses to what you hear.
B. See you next time.
C. It’s my pleasure.
计算机专业英语Unit 3
Unit 3Text 11.Match each of the words or phrases with their Chinese meaning.disk 磁盘modem 调制解调器driver 驱动器printer 打印机display 显示器mouse 鼠标keyboard 键盘computer 计算机2.Fill a correct word learned in this text in each of the blanks.(1)The display of the computer is also called______.Screen(2)The function of a ____ is to print the information or data on a piece of paper.printer(3)The keyboard is one of the _____devices.input(4) A modem plays an important role when you want to use the ______.internet3. Translation.(1)我是一个操作员。
I am a computer programmer.(2)什么是电子计算机？What is a electronic computer?(3)我有一个键盘。
I have a keyboard(4)It costs me 4000 Yuan to buy a computer.买一台电脑需要花费我4000元人民币。
(5)I am now finding a file that was deleted by mistake.我正在找一个不小心被我误删的文件。
(6)There was some problems with my mouse. Maybe it’s not clean.我的鼠标器有点问题，也许是它不干净了。
计算机专业英语教案第3章
第3章Software Knowledge3.1 Data Structures3.2 Operating System3.3 Programming Languages3.4 Software Engineering3.5 Software Testing and Maintenance3.2 Operating System•The purpose of an operating system is to provide an environment in which a user may execute programs.•Operating systems exist because they are a reasonable way to solve the problem of creating a usable computing system.•The primary goal of an operating system is convenience for the user.• A secondary goal is efficient operation of the computer system.Resource Management•The operating system provides the means for the proper use of these resources in the operation of the computer system.•We can view an operating system as a resource allocates.•The operating system sets up the order in which programs are processed, and defines the sequence in which particular jobs are executed•I/O Management•To facilitate execution of I/O operations, most operating systems have a standard set of control instructions to handle the processing of all input and output instructions.•These standard instructions, referred to as the input/output control system (IOCS), are an integral part of most operating systems. •The controlling software calls on the IOCS software to actually complete the I/O operation.Classification of Operating Systems• A single-user operating system expects to deal with one set of input devices—those that can be controlled by one user at a time.• A multi-user operating system is designed to deal with input, output, and processing requests from many users-all at the same time.• A network operating system provides communications and routing services that allow computers to share data, programs and peripheral devices.• A multitasking operating system provides process and memory management services that allow two or more programs to run simultaneously.•All modern operating systems are multitasking and can run several processes simultaneously.• A desktop operating system is one that is designed for a personal computer—either a desktop or notebook computer.•3.3 Programming Languages• A programming language or computer language is a standardized communication technique for expressing instructions to a computer.• A language enables a programmer to precisely specify what data a computer will act upon, how these data will be stored/transmitted, and what actions to take under various circumstances of cases. •Programming languages are important tools for helping software engineers write better programs faster.Procedural programming and Object-oriented programming •Procedural programming involves using your knowledge of a programming language to create computer memory locations that can hold values and writing a series of steps or operations that manipulate those values.• A single procedural program often contains hundreds of variable and thousands of procedure calls.•Object-oriented programming is an extension of procedural programming in which you take a slightly different approach to writing computer programs.•Writing object-oriented programs involves both creating objects and creating applications that use those objects.Machine Language•An executable program is a sequence of extremely simple instructions known as machine code.•Machine code instructions are binary—that is, sequences of bits (0s and 1s).•Because these numbers are not understood easily by humans, computer instructions usually are not written in machine code. Assembly Language•Assembly language uses commands that are easier for programmers to understand than are machine-language commands. •Each machine language instruction has an equivalent command in assembly language.•Assembly language is sometimes inserted into a high-level language program to carry out specific hardware tasks or to speed up a high-level program.High-Level Languages•If the computer could translate convenient symbols into basic operations, why couldn’t it also perform other clerical coding functions?• A high-level programming language is a means of writing down, informal terms, the steps that must be performed to process a given set of data in a uniquely defined way.•The high-level languages are often oriented toward a particular class of processing problems.Compiler and Interpreter• A complier is a program that translates source code into object code.•Every high-level programming language comes with a compiler. •Because compilers translate source code into object code, which is unique for each type of computer, many compilers are available for the same language.•An interpreter translates high-level instructions into an intermediate form, which it then executes.•The advantage of an interpreter, however, is that it does not need to go through the compilation stage during which machine instructions are generated.•3.4 Software Engineering•Software engineering is the application of tools, methods, and disciplines to produce and maintain an automated solution to a real-world problem.•Software engineering first emerged as a popular term in the title ofa 1968 NA TO conference held in Garmisch, Germany.• A large-scale software projects spans a considerable period of time.A number of distinct phases can be identified over this period oftime. Together, these make up what is known as the “software life cycle”.The software life cycle•Requirements definition: The requirements of the software are established and specified.•Design: A design is developed from an analysis of the requirements.•Implementation: The design is coded in a particular programming language on a particular machine.•Testing: The implemented system is tested to see that it meets the specified requirements.•Operation and maintenance: The system is installed and used.Errors found must be repaired.Requirements definition•The first phase, requirements definition, refers to the period during which the requirements of the system desired, that is, it’s functional characteristics and operational details, are specified.•The input to this phase is the stated (often rather loosely stated) needs for the software.•Typically, a “requirements document” is the output of thi s phase, a set of precisely stated properties or constraints that the final product must satisfy.•As with any of the phases, it is important that errors not be allowed to move into subsequent phases.Design•The second phase, design, is predominantly creative, while some would argue that creativity is inherent and cannot be trained or improved, it can certainly be enhanced by the use of good procedures and tools.•The input to this phase is a (debugged and validated) requirements document: the output is a design expressed in some appropriate form (for example, pseudo-code).•Each requirement in the requirements document must have a corresponding design fragment to meet it.Implementation•The third phase, implementation, is the actual coding of the design developed in the second phase.•The lure of this phase is strong, and many a foolhardy programmer has been drawn to it before adequately laying the groundwork in the first two phases.•As a result, requirements are incompletely understood and thedesign is flawed.•The implementation proceeds blindly, and many problems arise asa result.Testing•The fourth phase, testing, is concerned with demonstrating the correctness of the implemented program. Inevitably some testing is performed as part of the previous two phases as well.•Any experienced programmer mentally tests each line as it is produced and mentally simulates the execution of any module prior to any formal testing stage.• A “successful” test run means only that no errors were uncovered with the particular circumstances tested; it says nothing about other circumstances.•In theory, the only way that testing can show that a program is correct is if all possible cases are tried (known as an exhaustive test), a situation technically impossible for even the simplest programs.Program maintenance•The fifth phase is program maintenance phase. Student programmers, unfortunately, rarely become involved in this phase. •Its importance in the real world, however, cannot be overemphasized, since the cost of maintaining a widely usedprogram can match or exceed the cost of developing it.•Unlike hardware maintenance, software maintenance deals not with repair of deteriorated components, but with repair of design defects, which may include the provision of added functions to meet new needs.。
计算机专业英语 Unit 3 Operating System
contiguous memory free up memory
magnetic disk optical media non-volatile storage
连续内存 释放内存
磁盘 光盘 非易失性存储
New Words and Useful Expressions
access time network adapter peripheral device circuit board chain of command 存取时间 网络适配器 外设 电路板 命令串
Real-time operating system (RTOS)
Real-time operating systems are used to control machinery, scientific instruments and industrial systems. Little user-interface capability, and no end-user utilities, since the system will be a "sealed box" when delivered for use. A very important part of an RTOS is managing the resources of the computer so that a particular operation executes in precisely the same amount of time, every time it occurs.
Specific Operating System
There are hundreds of other operating systems available for special-purpose applications, including specializations for mainframes, robotics, manufacturing, real-time control systems and so on.
计算机英语 unit3 Computer Network Lesson1 Recoginizing Network
across
.
a. vocie b. telephone lines c. client
调制解调器能让计算机通过电话线进行通信，这种 通信既包含语音信号，也包含数据信号。
A
1. network interface card 2. system unit 3. center node 4. expansion card
a. 中心节点 b. 网络接口卡 c. 扩展卡 d. 系统单元
B
1. The server and client computers are both connected to
portable [ˈpɔːtəbl] 便携式的 arrange [əˈreɪndʒ] 安排，排列
New Words and Phrases
designate [ˈdezɪɡneɪt] vt. 指派，委任 node [nəʊd] n.节点 locate [ləʊˈkeɪt] vt.找出，指出，位于 wireless router 无线路由器 network interface card 网络接口卡
B
P 39
1. The customer has set up his home network. 2. The customer has the necessary devices to set up a network.
Yes No Yes No
3. Mary knows how to choose the type of the network. 4. The wired network is better to the customer.
Unit 3
Computer Network
计算机网络
Goal
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2、跟着老师一起阅读新词汇
3、记下重点词汇
学习专业词汇
讲解课文
引导学生阅读
Application Software andSystem Software
1、1、听课文录音并阅读课文Application Software andSystem Software
2、查阅的单词
总结
总结本单元所学的单词与知识点
1、观看教师的讲解
2、打开课本查看相关内容
3、运用本单元所学知识点，做课后练习
复习本单元所学内容
作业
记忆单词
教学小结
通过课文学习专业英语的表达方式
问题引入与解决
提出问题：
1、There are two kinds of software. What are they?
2、Do they have their special functions?
1、从文中找出问题的答案
2、根据课文所需内容试着用英文回答问题。
加深对课文的理解掌握
广州康大职业技术学院《计算机专业英语》课程教案
系（部）教师：蒋璐
使 用 年 月 日
周次
班 次
星期
节 次
教案编号
3
2012年10月11日
6
11网站、多媒体班
四
3、4
2012年10月18日
7
11网站、多媒体班
四
3、4
学习内容
Brief Introduction to Computer Software
课时
听写单词
考查学生单词的掌握情况
引出主题
引出主题
Do you know the following software companies？
1、根据幻灯片显示的照片猜测电脑软件的英文名，并试着说出软件的功能。
2、观看教师的讲解
2、打开课本查看相关内容
进入新的学习主题
词汇学习
讲解词汇并标出重点词汇：
Application、graphical、virus、system、interface、editor、perform、command、mathematical、statistical、type、communicate with、Electronic Spreadsheet Software、DBMS、CAD、CAE、CAM、OS、MS-DOS、
What are the most commonly used?
3、完话I want to buy a MP3
3、两两同学对话表演
4、通过课堂上学习的对话，同学之间试着用英语讨论老师的问题
5、单个同学试着用英语向全班同学来表达自己的观点。
6、讨论并总结
通过英文对话学习专业英语的表达方式
1、听录音，模仿录音中的读音
2、跟着老师一起阅读新词汇
3、记下重点词汇
学习专业词汇
英文对话学习
1、引导学生阅读对话How to Compress files
2、提出问题
What are the functions of archive manager?
How many kinds of archive managers are there?
4
教学目标
专业能力
1、了解计算机作用
2、了解计算机如何处理信息
3、掌握计算机的分类
4、掌握相关的专业词汇
方法能力
借助实物记忆的能力
素质培养
学会团队合作、学会与人沟通
知识点
专业词汇
技能点
阅读专业文章
教学环境
多媒体教室
教学方法
讲演法、问题驱动学习法
教学过程
教师活动
学生活动
设计意图
听写
听写unit2的单词
题目
完成课堂练习题目
1、打开课本查看相关内容
2、根据课文做题目，回答问题
通过问题理解课文
词汇学习
讲解新单词并标出重点词汇：
download、compress、default、format、archive manager、decompress、backup、Tools Menu、file format、ZIP