计算机专业英语第5章.ppt
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计算机专业英语第三版教学课件Unit5 Software Engineering
Mr. Brown: Zhonghua Computers. What can I do for you?
布朗先生：您好！中华计算机公司。我能为您做些什么？
Linda: Hello, Mr. Brown. It is Linda. Got a minute?
琳达：您好，布朗先生。我是琳达。您有时间吗？
Mr. Brown: I see your point. If we have to spend more time on developing the second version, we’ll have to adjust the schedule. People need to know that we have adjusted the project development plan as soon as possible. Do you want me to call the project manager?
Look and Learn Dialogue Reading Learn More New Words and Phrases
A software development project organization.
Lesson 14
Unit 5
Look and Learn Dialogue Reading Learn More New Words and Phrases
Mr. Brown: Yes.We planned to put the two versions in the same development process. Well, what kind of problem are you having now?
布朗先生：是的。我们计划在同一个开发过程中投入两个版本。那您现在遇到什么问题了？
布朗先生：您好！中华计算机公司。我能为您做些什么？
Linda: Hello, Mr. Brown. It is Linda. Got a minute?
琳达：您好，布朗先生。我是琳达。您有时间吗？
Mr. Brown: I see your point. If we have to spend more time on developing the second version, we’ll have to adjust the schedule. People need to know that we have adjusted the project development plan as soon as possible. Do you want me to call the project manager?
Look and Learn Dialogue Reading Learn More New Words and Phrases
A software development project organization.
Lesson 14
Unit 5
Look and Learn Dialogue Reading Learn More New Words and Phrases
Mr. Brown: Yes.We planned to put the two versions in the same development process. Well, what kind of problem are you having now?
布朗先生：是的。我们计划在同一个开发过程中投入两个版本。那您现在遇到什么问题了？
计算机专业英语第5章
令牌，记号 拓扑，结构 升级，上升 不可靠的
10
Notes
[1] Without a network, the documents have to be printed out so that others can edit them or use them. 译文：没有网络，就必须将文档打印出来才能供他 人编辑或使用。 本句的“Without a network”是条件状语，“so that” 引导的是目的状语从句。
（1）Star network （2）Grid network （3）Bus network （4）Ring network （5）Hybrid network
8
Key Words
accurate annulus backbone contractor diagnose fashion hierarchical hybrid merge neighbor
7
ห้องสมุดไป่ตู้he physical topology describes the layout of the network, just like a map shows the layout of various roads, and the logical topology describes how the data is sent across the network or how the cars are able to travel (the direction and speed) at every road on the map. Logical topology is the method used to pass the information between the computers.
10
Notes
[1] Without a network, the documents have to be printed out so that others can edit them or use them. 译文：没有网络，就必须将文档打印出来才能供他 人编辑或使用。 本句的“Without a network”是条件状语，“so that” 引导的是目的状语从句。
（1）Star network （2）Grid network （3）Bus network （4）Ring network （5）Hybrid network
8
Key Words
accurate annulus backbone contractor diagnose fashion hierarchical hybrid merge neighbor
7
ห้องสมุดไป่ตู้he physical topology describes the layout of the network, just like a map shows the layout of various roads, and the logical topology describes how the data is sent across the network or how the cars are able to travel (the direction and speed) at every road on the map. Logical topology is the method used to pass the information between the computers.
《计算机英语》Unit 5
1.1 Object-Oriented Programming
• III. Translating.
– 1. Original: Object-oriented programming was deployed in part as an attempt to address this problem by strongly emphasizing discrete units of programming logic and re-usability in software – Translation: – 2. Original In the past decade Java has emerged in wide use partially because of its similarity to C and to C++, but perhaps more importantly because of its implementation using a virtual machine that is intended to run code unchanged on many different platforms. – Translation:•来自Complex Sentences
1.2 Introduction to the C# Language and the .NET Framework
– 2. Original: In addition to the run time services, the .NET Framework also includes an extensive library of over 4 000 classes organized into namespaces that provide a wide variety of useful functionality for everything from file input and output to string manipulation to XML parsing, to Windows Forms controls. – Translation:除了运行时服务，.NET Framework 还包括一个巨大 的类库，有超过4 000 个被组织到命名空间中的类。这个类库提 供了多种有用的功能，从文件输入输出到串操作，到XML解析， 再到Windows 表格控件。
《计算机专业英语》Unit 5 What is Operating System
The operating system is a huge management control procedures, broadly include the following five aspects of management functions: process and processor management, operations management, storage management, device management, document management.
The patterns are very diverse operating systems; OS can be installed on different machines from simple to complex, from the phone's embedded systems to large-scale supercomputer operating system. Many operating systems, the definition of manufacturer of the OS is not much consensus, for example, that some OS integrated graphical user interface, and some OS to use only a text interface, while the graphical interface as a non-essential applications.
资源, 财力, 办法, 智谋
经营, 管理, 处理, 操纵, 驾驶, 手段
Novell公司出的网络操作系统
植入的, 深入的, 内含的
The patterns are very diverse operating systems; OS can be installed on different machines from simple to complex, from the phone's embedded systems to large-scale supercomputer operating system. Many operating systems, the definition of manufacturer of the OS is not much consensus, for example, that some OS integrated graphical user interface, and some OS to use only a text interface, while the graphical interface as a non-essential applications.
资源, 财力, 办法, 智谋
经营, 管理, 处理, 操纵, 驾驶, 手段
Novell公司出的网络操作系统
植入的, 深入的, 内含的
计算机专业英语Unit 5 Network
Computer English
New Words and Useful Expressions
subnet/ 'sʌbnet / intranet/ 'ɪntrənet / verify/ 'verɪfaɪ / multiplex/ 'mʌltɪpleks / queue/ kjuː / best effort out of sequence binary notation
❖ FTP: The File Transfer Protocol (FTP) is a standard network protocol used to transfer computer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and uses separate control and data connections between the client and the server.
three-way handshake
IP header IP payload
Time to Live
connection oriented TCP timestamps
点分十进制 字节流 三次握手。在TCP/IP协议中，TCP协 议提供可靠的连接服务，采用三次 握手建立一个连接。 IP数据报头部 IP数据报负载 生存时间值。Time To Live的缩写， 该字段指定IP包被路由器丢弃之前 允许通过的最大网段数量 。TTL是 IPv4包头的一个8 bit字段。 面向连接的 TCP时间戳
计算机专业英语第3版unit5
21.06.2021
精选2021版课件
7
Legal issues in electronic-commerce
➢ Electronic-commerce is so new that the legal, ethical, and other public policy issues that are necessary for electronic-commerce’s existence are still evolving.
译文：通过在互联网上全天候地提供产品及服务的最新信息， 商家可以与客户和消费者随时建立紧密联系来确保他们的竞 争优势。
21.06.2021
精选2021版课件
13
Notes
[2] From a service perspective, EC is a tool that addresses the desire of firms, consumers, and management to cut service costs while improving the quality of goods and increasing the speed of service delivery. “From a service perspective”作状语，主句是“EC is a tool”，“that”后面的部分作定语修饰“tool”。
The broader definition is that electronic commerce is the use of electronic tools in commercial activities.
21.06.2021
精选2021版课件
4
Classification of the EC field by the nature of the transactions
计算机英语课件Unit 5 Software Process Models
Unit 5 Software Process
Section A: Software Process Models
I.
Introduction
A software process is a set of activities that leads to the production of a software product. These activities may involve the development of software from scratch in a standard programming language like Java or C. Increasingly, however, new software is developed by extending and modifying existing systems and by configuring and integrating off-the-shelf software or system components.
During the final life-cycle phase (operation and maintenance), the software is put into use. Errors and omissions in the original software requirements are discovered. Program and design errors emerge and the need for new functionality is identified. The system must therefore evolve to remain useful. Making these changes (software maintenance) may involve repeating previous process stages.
Section A: Software Process Models
I.
Introduction
A software process is a set of activities that leads to the production of a software product. These activities may involve the development of software from scratch in a standard programming language like Java or C. Increasingly, however, new software is developed by extending and modifying existing systems and by configuring and integrating off-the-shelf software or system components.
During the final life-cycle phase (operation and maintenance), the software is put into use. Errors and omissions in the original software requirements are discovered. Program and design errors emerge and the need for new functionality is identified. The system must therefore evolve to remain useful. Making these changes (software maintenance) may involve repeating previous process stages.
《计算机英语》UnitFivePPT课件
2020/10/13
7
注：要搞清楚宾语和分词结构的关系，如 果是主动要用V-ing ,如果是被动要用V-ed.
V-ing 表“动作正在进行”， 此时或当时的 状态
V-ed 表“动作发生在谓语动词的动作之前”
注：“have + 宾语 + v-ing” 表主体处于某 种状态或干什么事。
“have + 宾语 + v-ed”表动作是别人做 的，与主体无关。
V-ed 作宾补，可以在allow, ask, consider, desire, expect, feel, send, get, have, hear, image, keep, like, make, observer, order, require, permit, prefer, remember, request, urge等动词后使用。
2020/10/13
8
B. 作主语补足语 作宾语补足语的分词改为被动语态后，分
词就转化为主语补足语了。
e.g. He was found sitting at the table. This song was heard sung in French. The children were heard singing the song. C. 作定语 位置：分词作定语，有前置定语和后置定
Seen from the hill (If out school is seen from the hill), our school looks more beautiful.
表示原因
Being ill, he didn’t come to school. (=He didn’t come to school because he was ill.)
计算机专业英语课件5
计算机专业英语 7
Key Words
browser collaborate considerable customized footnote hardcopy indispensable italic ledger managerial memo novel
2014-10-22
浏览器 合作，勾结 相当的，重要的 定制的 脚注 硬拷贝 不可缺少的，绝对必要的 斜体字，斜体的 分类帐 管理的 备忘录 小说，长篇故事
2014-10-22
计算机专业英语
2
5.1 Word Processing
• Personal computer-based office automation software has become an indispensable part of electronic management in many countries. • Word processing programs have replaced typewriters; spreadsheet programs have replaced ledger books; database programs have replaced paper-based electoral rolls, inventories and staff lists; personal organizer programs have replaced paper diaries; and so on. • Word processing refers to the methods and procedures involved in using a computer to create, edit, and print documents. • Word processing software has replaced typewriters for producing documents such as reports, letters, papers, and manuscripts.
Key Words
browser collaborate considerable customized footnote hardcopy indispensable italic ledger managerial memo novel
2014-10-22
浏览器 合作，勾结 相当的，重要的 定制的 脚注 硬拷贝 不可缺少的，绝对必要的 斜体字，斜体的 分类帐 管理的 备忘录 小说，长篇故事
2014-10-22
计算机专业英语
2
5.1 Word Processing
• Personal computer-based office automation software has become an indispensable part of electronic management in many countries. • Word processing programs have replaced typewriters; spreadsheet programs have replaced ledger books; database programs have replaced paper-based electoral rolls, inventories and staff lists; personal organizer programs have replaced paper diaries; and so on. • Word processing refers to the methods and procedures involved in using a computer to create, edit, and print documents. • Word processing software has replaced typewriters for producing documents such as reports, letters, papers, and manuscripts.
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• Transmission Control Protocol • 传输控制协议 • Internet Protocol • 网际协议
计算机专业英语 》》
计算机专业英语 》》
Interet Protocol (IP) is a network-layer (Layer 3) protocol that contains addressing information and some control information that enables packets to be routed.
• 以连接为导向的
• end-to-end
• 端到端的
计算机专业英语 》》
• TCP Connection Establishment • Connection establishment is
performed by using a "three-way handshake" mechanism. A threeway handshake synchronizes both ends of a connection by allowing both sides to agree upon initial sequence numbers.
计算机专业英语 》》
• protocol
n.草案，协议
• nonproprietary 开放性的
• suite
套，组
• across
越过，横过
• interconnect 使互相连接
• communication 信息，通讯
• communicate 沟通
计算机专业英语 》》
• The Internet protocols consist of a suite of communication protocols, of which the two best known are the Transmission Control Protocol (TCP) and the Internet Protocol (IP).
计算机专业英语 》》
• responsibility n.责任，职责
• connectionless 无连接
• delivery
传输，递送
• datagram
数据包
• fragmentation 分裂，破碎
• reassembly 重新组装
• link n.连结物, 链接
vt.连结；vi.连接起来
• network-layer address route
网络层
地址
发送
计算机专业英语 》》
• IP has two primary responsibilities: providing connectionless, best-effort delivery of datagrams through an internetwork; and providing fragmentation and reassembly of datagrams to support data links with different maximumtransmission unit (MTU) sizes.
计算机专业英语 》》
Lesson One Internet Protocols
• Background • The Internet protocols are the
world's most popular opensystem (nonproprietary) protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for LAN and WAN communications.
• The TCP provides reliable transmission of data in an IP environment. TCP corresponds to the transport layer (Layer 4) of the OSI reference model. Among the services TCP provides are stream data transfer, reliability, efficient flow control, full-duplex operation, and multiplexing.
计算机专业英语 》》
• TCP offers reliability by providing connection-oriented, end-to-end reliable packet delivery through an internet work.
• connection-oriented
to it. 你马上就要成功了，坚持，坚持下去！ • 5.You are the best. 你真是顶呱呱！[这 是母亲对儿子、女孩对男友常说的话。] • 68.You are fantastic. 你太棒了！
计算机专业英语 》》
Lesson Two Transmission Control Protocol (TCP)
• maximum n.最大量, 极大
adj.最高的, 最多的, 最大极限的
计算机专业英语 》》
英语口语练习材料
• 1.You are going to make it. 你准行！ • 2.You are going to win. 你会赢！ • 3.You are my only hope.
你是我的希望。 • 4.You are almost there. Keep trying，stick
计算机专业英语 》》
UNIT FIVE
计算机英语Network Technology and Web
Design Tools
Lesson One Internet Protocols Lesson Two Transmission Control Protocol (TCP) Lesson Three Macromedia Dreamweaver MX 2004
计算机专业英语 》》
计算机专业英语 》》
Interet Protocol (IP) is a network-layer (Layer 3) protocol that contains addressing information and some control information that enables packets to be routed.
• 以连接为导向的
• end-to-end
• 端到端的
计算机专业英语 》》
• TCP Connection Establishment • Connection establishment is
performed by using a "three-way handshake" mechanism. A threeway handshake synchronizes both ends of a connection by allowing both sides to agree upon initial sequence numbers.
计算机专业英语 》》
• protocol
n.草案，协议
• nonproprietary 开放性的
• suite
套，组
• across
越过，横过
• interconnect 使互相连接
• communication 信息，通讯
• communicate 沟通
计算机专业英语 》》
• The Internet protocols consist of a suite of communication protocols, of which the two best known are the Transmission Control Protocol (TCP) and the Internet Protocol (IP).
计算机专业英语 》》
• responsibility n.责任，职责
• connectionless 无连接
• delivery
传输，递送
• datagram
数据包
• fragmentation 分裂，破碎
• reassembly 重新组装
• link n.连结物, 链接
vt.连结；vi.连接起来
• network-layer address route
网络层
地址
发送
计算机专业英语 》》
• IP has two primary responsibilities: providing connectionless, best-effort delivery of datagrams through an internetwork; and providing fragmentation and reassembly of datagrams to support data links with different maximumtransmission unit (MTU) sizes.
计算机专业英语 》》
Lesson One Internet Protocols
• Background • The Internet protocols are the
world's most popular opensystem (nonproprietary) protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for LAN and WAN communications.
• The TCP provides reliable transmission of data in an IP environment. TCP corresponds to the transport layer (Layer 4) of the OSI reference model. Among the services TCP provides are stream data transfer, reliability, efficient flow control, full-duplex operation, and multiplexing.
计算机专业英语 》》
• TCP offers reliability by providing connection-oriented, end-to-end reliable packet delivery through an internet work.
• connection-oriented
to it. 你马上就要成功了，坚持，坚持下去！ • 5.You are the best. 你真是顶呱呱！[这 是母亲对儿子、女孩对男友常说的话。] • 68.You are fantastic. 你太棒了！
计算机专业英语 》》
Lesson Two Transmission Control Protocol (TCP)
• maximum n.最大量, 极大
adj.最高的, 最多的, 最大极限的
计算机专业英语 》》
英语口语练习材料
• 1.You are going to make it. 你准行！ • 2.You are going to win. 你会赢！ • 3.You are my only hope.
你是我的希望。 • 4.You are almost there. Keep trying，stick
计算机专业英语 》》
UNIT FIVE
计算机英语Network Technology and Web
Design Tools
Lesson One Internet Protocols Lesson Two Transmission Control Protocol (TCP) Lesson Three Macromedia Dreamweaver MX 2004