计算机专业英语4
Unit 4 Software Development Section A
Computer Program
I. Introduction
A computer program is a set of instructions that directs a computer to perform some processing function or combination of functions. For the instructions to be carried out, a computer must execute a program , that is, the computer reads the program, and then follows the steps encoded in the program in a precise order until completion. A program can be executed many different times, with each execution yielding a potentially different result depending upon the options and data that the user gives the computer.
Programs fall into two major classes: application programs and operating systems. An application program is one that carries out(执行)some function directly for a user, such as word processing or game playing. An
operating system is a program that manages the computer and the various resources and devices connected to it, such as RAM (random access memory), hard drives, monitors, keyboards, printers, and modems, so that they may be used by other programs. Examples of operating systems are DOS', Windows 95, OS/22, and UNIX.
II. Program Development
Software designers create new programs by using special applications programs, often called utility programs or development programs. A programmer uses another type of program called a text editor to write the new program in a special notation called a programming language. With the text editor, the programmer creates a text file, which is an ordered list of instructions, also called the program source file.The individual instructions that make up（整理，组成）the program source file are called source code. At this point, a special applications program
translates the source code into machine language, or object code—a format that the operating system will recognize as a proper program and be able to execute.
Three types of applications programs translate from source code to object code: compilers, interpreters（解释程序）, and assemblers. The three operate differently and on different types of programming languages, but they serve the same purpose of translating from a programming language into machine language.
A compiler translates text files written in a high-level programming language—such as FORTRAN, C, or Pascal—from the source code to the object code all at once. This differs from the approach taken by interpreted languages such as BASIC, in which a program is translated into object code statement by statement as each instruction is executed. The advantage of interpreted languages is that they can begin executing the program immediately instead of having to wait
for all of the source code to be compiled. Changes can also be made to the program fairly quickly without having to wait for it to be compiled again. The disadvantage of interpreted languages is that they are slow to execute, since the entire program must be translated one instruction at a time, each time the program is run. On the other hand, compiled languages are compiled only once and thus can executed by the computer much more quickly than interpreted languages. For this reason, compiled languages are more common and are almost always used in professional and scientific applications. Another type of translator is the assembler, which is used for programs or parts of programs written in assembly language. Assembly language is another programming language, but it is much more similar to machine language than other types of high-level languages. In assembly language, a single statement can usually be translated into
a single instruction of machine language. Today, assembly language is rarely used to write an entire program, but is instead most often used when the programmer needs to directly control some aspect of the computer's function.
Programs are often written as a set of smaller pieces, with each piece representing some aspect of the overall application program. After each piece has been compiled separately, a program called a linker combines all of the translated pieces into a single executable program.
Programs seldom work correctly the first time, so a program called debugger is often used to help find problems called bugs. Debugging programs usually detect an event in the executing program and point the programmer back to the origin of the event in the program code.
Recent programming systems, such as Java, use a combination of approaches to create and
execute programs. A compiler takes a Java source program and translates it into an intermediate form. Such intermediate programs are then transferred over the Internet into computers where an interpreter program then executes the intermediate form as an application program.
III. Program Elements
Most programs are built from just a few kinds of steps that are repeated many times in different contexts and in different combinations throughout the program. The most common step performs some computation, and then proceeds to（向…进发）the next step in the program, in the order specified by the programmer.
Programs often need to repeat a short series of steps many times, for instance in looking through a list of game scores and finding the highest score. Such repetitive sequences of code are called loops.
One of the capabilities that make computers so useful is their ability to make conditional decisions and perform different instructions based on the values of data being processed. If-then-else statements implement this function by testing some piece of data and then selecting one of two sequences of instructions on the basis of the result. One of the instructions in these alternatives may be a goto statement that directs the computer to select its next instruction from a different part of the program. For example, a program might compare two numbers and branch to a different part of the program depending on the result of the comparison:
If x is greater than y
then goto instruction
#10
else continue
Programs often use a specific sequence of steps more than once. Such a sequence of steps can be grouped together into a subroutine,
which can then be called, or accessed, as needed in different parts of the main program. Each time a subroutine is called, the computer remembers where it was in the program when the call was made, so that it can return there upon completion of the subroutine. Preceding each call, a program can specify that different data be used by the subroutine, allowing a very general piece of code to be written once and used in multiple ways.
Most programs use several varieties of subroutines. The most common of these are functions, procedures,library routines, system routines,and device drivers. Functions are short subroutines that compute some value, such as computations of angles, which the computer cannot compute with a single basic instruction. Procedures perform a more complex function, such as sorting a set of names. Library routines are subroutines that are written for use by many different programs. System routines are similar to library routines
but are actually found in the operating system. They provide some service for the application programs, such as printing a line of text. Device drivers are system routines that are added to an operating system to allow the computer to communicate with a new device, such as a scanner, modem, or printer. Device drivers often have features that can be executed directly as applications programs. This allows the user to directly control the device, which is useful if, for instance, a color printer needs to be realigned to attain the best printing quality after changing an ink cartridge
IV. Program Function
Modem computers usually store programs on some form of magnetic storage media that can be accessed randomly by the computer, such as the hard drive disk permanently located in the computer, or a portable floppy disk. Additional information on such disks, called directories, indicates the names of the various
programs on the disk, when they were written to the disk, and where the program begins on the disk media. When a user directs the computer to execute a particular application program, the operating system looks through （浏览）these directories, locates the program, and reads a copy into RAM. The operating system then directs the CPU (central processing unit) to start executing the instructions at the beginning of the program. Instructions at the beginning of the program prepare the computer to process information by locating free memory locations in RAM to hold working data, retrieving copies of the standard options and defaults the user has indicated from a disk, and drawing initial displays on the monitor.
The application program requests a copy of any information the user enters by making a call to a system routine. The operating system converts any data so entered into a standard internal form. The application then list this
information to decide what to do next—for example, perform some desired processing function such as reformatting a page of text, or obtain some additional information from another file on a disk. In either case, calls to other system routines are used to actually carry out the display of results or the accessing of the file from the disk.
When the application reaches completion or is prompted to quit, makes further system calls to make sure that all data that needs to be saved has been written back to disk. It then makes a final system call to the operating system indicating that it is finished. The operating system then frees up the RAM and any devices that the application was using and awaits a command from the user to start another program.
V. History
People have been storing sequences of instructions in the form of program for several
centuries. Music boxes of the 18th century and player pianos of the late 19th and early 20th centuries played musical programs stored as series of metal pins, or holes in paper, with each line (of pins holes) representing when a note was to be played, and the pin or hole indicating what note was to be played at that time. More elaborate control of physical devices became common in the early 1800s with French inventor Joseph-Marie Jacquard's invention of the punch-card controlled weaving loom. In the process of weaving a particular pattern, various parts of the loom had to be mechanically positioned. To automate this process, Jacquard used a single paper card to represent each positioning of the loom, with holes in the card to indicate which loom actions should be done. An entire tapestry could be encoded onto a deck of such cards, with the same deck yielding the same tapestry design each time it was used. Programs of over 24,000 cards were developed
and used.
The world's first programmable machine was designed—although never fully built—by the English mathematician and inventor, Charles Babbage. This machine, called the Analytical Engine, used punch cards similar to those used in the Jacquard loom to select the specific arithmetic operation to apply at each step. Inserting a different set of cards changed the computations the machine performed. This machine had counterparts for almost everything found in modem computers, although it was mechanical rather than electrical. Construction of the Analytical Engine was never completed because the technology required to build it did not exist at the time.
The first card deck programs for the Analytical Engine were developed by British mathematician Augusta Ada Byron, daughter of the poet Lord Byron. For this reason she is recognized as the world's first programmer.
The modern concept of an internally stored computer program was first proposed by Hungarian-American mathematician John von Neumann in 1945. Von Neumann's idea was to use the computer's memory to store the program as well as the data. In this way, programs can be viewed as data and can be processed like data by other programs. This idea greatly simplifies the role of program storage and execution in computers.
VI. The Future
The field of computer science has grown rapidly since the 1950s due to（由于）the increase in their use. Computer programs have undergone many changes during this time in response to user need and advances in technology. Newer ideas in computing such as parallel computing, distributed computing, and artificial intelligence, have radically altered the traditional concepts that once determined program form and function.
Computer scientists working in the field of parallel computing,in which multiple CPUs cooperate on the same problem at the same time , have introduced a number of new program models. In parallel computing parts of a problem are worked on simultaneously by different processors, and this speeds up the solution of the problem. Many challenges face scientists and engineers who design programs for parallel processing computers, because of the extreme complexity of the systems and the difficulty involved in making them operate as effectively as possible.
Another type of parallel computing called distributed computing uses CPUs from many interconnected computers to solve problems. Often the computers used to process information in a distributed computing application are connected over the Internet. Internet applications are becoming a particularly useful form of distributed computing, especially with programming
languages such as Java. In such applications, a user logs on to a Web site and downloads a Java program onto their computer. When the Java program is run, it communicates with other programs at its home Web site, and may also communicate with other programs running on different computers or Web sites.
Research into artificial intelligence (AI) has led to（导致）several other new styles of programming. Logic programs, for example, do not consist of individual instructions for the computer to follow blindly, but instead consist of sets of rules: if x happens then do y.
A special program called an inference engine uses these rules to "reason" its way to a conclusion when presented with a new problem. Applications of logic programs include automatic monitoring of complex systems, and proving mathematical theorems.
A radically different approach to computing in which there is no program in the conventional
sense is called a neural network. A neural network is a group of highly interconnected simple processing elements designed to mimic the brain. Instead of having a program direct the information processing in the way that a traditional computer does, a neural network processes information depending upon the way that its processing elements are connected. Programming a neural network is accomplished presenting it with known patterns of input and output data and adjusting the relative importance of the interconnections between the processing elements until the desired pattern matching is accomplished. Neural networks are usually simulated on traditional computers, but unlike traditional computer programs, neural networks are able to learn from their experience.
公开课网址：https://www.360docs.net/doc/31567818.html,/special/opencourse/humanco
mputer.html
计算机专业英语第3章在线测试
A B C D The data, when they are not encrypted, are called A B C D A virus is a A B C D Many viruses go resident in the memory like a ( ). A B C D Now, about ( ) different viruses account for all the viruses that actually spread in t A B C D
C、attack phase D、creaｔe phase 2、( ) maybe a certain cause that some viruses infect upon. A、a day B、a time C、an external event on your PC D、a counter within the virus 3、Many viruses do harmful things such as ( ). A、deleting files B、simulating typos C、slowing your PC down D、changing random data on your disk 4、If a virus simply reproduce and have no cause for an attack phase, but it will still ( ) without your permission. A、stealing storage B、pilfer CPU cycles C、del＿ete files D、play music 5、Some viruses, with no attack phase, often damage the programs or disks they infect bec ause they ( ). A、have bugs in them B、contain poor quality code C、steal storage D、show messages on your screen 第三题、判断题（每题1分，5道题共5分）
计算机专业英语第四章译文
第四单元 课文A：计算机程序 一、引言 计算机程序是指导计算机执行某个功能或功能组合的一套指令。要使指令得到执行，计算机必须执行程序，也就是说，计算机要读取程序，然后按准确的顺序实施程序中编码的步骤，直至程序结束。一个程序可多次执行，而且每次用户输给计算机的选项和数据不同，就有可能得到不同的结果。 程序可分为两大类：应用程序和操作系统。应用程序直接为用户执行某项功能，如字处理或玩游戏。操作系统管理计算机和与之相连的各种资源和设备，如随机访问存储器、硬盘驱动器、监视器、键盘、打印机和调制解调器，以便使其他程序可以使用它们。操作系统的例子包括：DOS、Windows 95、OS/2和UNIX。 二、程序开发 软件设计者通过特殊的应用程序来开发新程序，这些应用程序常被称作实用程序或开发程序。程序员使用称作文本编辑器的另一种程序，来以称作编程语言的特殊标记编写新程序。使用文本编辑器，程序员创建一个文本文件，这个文本文件是一个有序指令表，也称为程序源文件。构成程序源文件的单个指令被称为源代码。在这个时候，一种特殊的应用程序将源代码翻译成机器语言或目标代码——操作系统将认作真程序并能够执行的一种格式。 将源代码翻译成目标代码的应用程序有3种：编译器、解释器和汇编程序。这3种应用程序在不同类型的编程语言上执行不同的操作，但是它们都起到将编程语言翻译成机器语言的相同目的。 编译器将使用FORTRAN、C和Pascal等高级编程语言编写的文本文件一次性从源代码翻译成目标代码。这不同于BASIC等解释执行的语言所采取的方式，在解释执行的语言中程序是随着每条指令的执行而逐个语句地翻译成目标代码的。解释执行的语言的优点是，它们可以立即开始执行程序，而不需要等到所有的源代码都得到编译。对程序的更改也可以相当快地作出，而无需等到重新编译整个程序。解释执行的语言的缺点是，它们执行起来慢，因为每次运行程序，都必须对整个程序一次一条指令地翻译。另一方面，编译执行的语言只编译一次，因此计算机执行起来要比解释执行的语言快得多。由于这个原因，编译执行的语言更常使用，而且在专业和科学领域几乎总是得到采用。 另一种翻译器是汇编程序，它被用于以汇编语言编写的程序或程序组成部分。汇编语言也是一种编程语言，但它比其他类型的高级语言更接近于机器语言。在汇编语言中，一条语句通常可以翻译成机器语言的一条指令。今天，汇编语言很少用来编写整个程序，而是最经常地采用于程序员需要直接控制计算机某个方面功能的场合。 程序经常被编写作一套较小的程序段，每段代表整个应用程序的某个方面。各段独立编译之后，一种被称为连接程序的程序将所有编译好的程序段组合成一个可以执行的完整程
计算机专业英语作文
计算机专业英语 系别：数学系 班级：11级计算机二班姓名：徐小凤学号：110312248
Robot Competition From 11th to 13th October 2013, these three days are special for my teammates and me. I took part in the fifth Robot Competition of Anhui province. After continuous efforts, we got the third prize in the end. In April 2013, this competition was announced in our class by Mr He. In that moment, many students registered for the competition. After hardly training, there were only fifteen students remaining. We were divided into five teams. Each included three people. There were three teams taking part in wheel type robot competition (or named intelligent car). And the other two majored in dancing robot. My two roommates and I engaged in the designing of robot dance. We controlled the robots by program. But the program was programmed in BASIC, which is a high level programming language. The problem was that we had never touched to that language besides C or C++. So, we must learn the language before designing the action. It seemed difficult but we had never lost our courage. After seeking enough data from the Internet and the library, we spent about a few weeks to learn it. When we felt the fundamental grammar was easy, we began to design the dancing action. That was the most important and most difficult part. We spent much time on
计算机专业英语报告
1.英语学术论文的语言风格特点就（知人方能论世） 为什么我们会读不懂SCI上面的文章呢？ 第一，由于SCI里面出现的专业词汇一般都是出现在特定领域，一类是一词对应于一意，另外一类则是一词多义。 其次，名词化结构则是另外另外一个普遍出现的现象，可以看到，复合名词，加前缀和后缀，以及省略现象可谓是漫山遍野，因为文体要求行文简洁、表达客观、内容确切、信息量大、强调存在的事实，一般文章不会夹杂着太多主观看法。 最后，大量使用长句和定语从句SCI论文发表中大量使用长句和定语从句，在论证上起到连接信息和强调信息的作用。广泛使用被动语态SCI论文发表中侧重叙事推理，强调客观准确，第一、二人称使用过多，会造成主观臆断的印象。因此尽量使用第三人称叙述，采用被动语态。名词作定语和缩写词使用频繁SCI论文发表中要求结构紧凑、行文简炼，缩写词和名词作定语的频繁使用，增大了信息密度，简化了句型。 如果我们能逆向思维，转换个角度去看文章，如果你要发表一篇SCI论文，你会怎么去构造你的行为，你如何组织你文章的逻辑，特别是用词方面，口语和一些狸语在一般
情况不应该出现在文章中。还有些中式英语也会极大地影响我们的阅读，例如说足球比赛，可不是我们想象中的football match （之前有次演讲说，英语里面不能有2个名词的情况，在此就举了个例子bicycle man），而应该做football play亦作soccer play。 2.翻译是一门艺术，从某种意义上来讲是没有标准答案的。 这里本人想要想要阐述这样一种观点，翻译是一个不断精进的过程，翻译最初的目的即是为了实现语言之间的一个互相沟通，然而不同的人对一句话，应该会有着不同的理解。这也就有了译者极大的自由发挥性，但是译者必须准确理解原文的基础之上的。 有三个字可以高度概括翻译的精髓“信，达，雅”，想必大家都应该听过。”“信”指意义不背原文,即是译文要准确,不歪曲,不遗漏,也不要随意增减意思；同样可以举个例子？This is a pan in my hand （请问如何翻译呢？） “达”指不拘泥于原文形式,译文通顺明白;这里就涉及到一个直译和意译的关系啦，否则就会出现像bicycle
济南大学计算机专业英语第一章答案
Homework of Chapter One 1. Chapter 1 Multiple Choice Select the best answer for each question below. When you are finished, check your answers by clicking the 'Check Answers' button at the bottom of the page. 1. People, procedures, software, hardware, and data are the five parts of a(n) competency system computer system information system software system 2. Procedures are typically documented in manuals written by computer specialists end users Microsoft service providers 3. Which of the following is an example of connectivity data hard disk
Internet power cord 4. Windows 7 is an example of a(n) application software browser operating system shareware 5. The most powerful type of computer. mainframe computers microcomputers minicomputers supercomputers 6. The system component that controls and manipulates data in order to produce information is called the keyboard microprocessor monitor mouse
计算机英语课后习题第四版总结
UNIT 1 词组翻译 1. artificial intelligence 人工智能 2. paper-tape reader 纸带阅读器 3. optical computer 光计算机 4. neural network 神经网络 5. instruction set 指令集 6. parallel processing 并行处理 7. difference engine 差分机 8. versatile logical element 通用逻辑元件 9. silicon substrate 硅衬底 10. vacuum tube 真空管 11. 数据的存储与处理the storage and handling of data 12. 超大规模集成电路very large-scale integrated circuit 13. 中央处理器central processing unit 14. 个人计算机personal computer 15. 模拟计算机analogue computer 16. 数字计算机digital computer 17. 通用计算机general-purpose computer 18. 处理器芯片processor chip 19. 操作指令operating instructions 20. 输入设备input device
完形填空 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 also be classified 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. Ever since the advent of computers, there have been constant changes. First-generation computers of historic significance, such as UNIVAC (通用自动计算机), 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. 翻译P9 计算机将变得更加先进，也将变得更加容易使用。 语音识别的改进将使计算机的操作更加容易。 虚拟现实，即使用所有人类官能与计算机进行交互的技术，也将有助于创建更好的人机接口。人们正在开发其他的奇异计算模型，包括使用生物机体的生物计算、使用具有特定属性的分子的分子计算，以及使用遗传基本单位DNA （脱氧核糖核酸）存储数据和执行运算的计算。 这些都是可能的未来计算平台的例子，而它们迄今还能力有限或完全属于理论范畴。 科学家们研究它们，是因为嵌入硅中的电路的微小型化受到物理限制。
计算机专业英语翻译
国家计算机教育认证 计算机英语 计算机英语词汇对译 蒙阴高新电脑学校 资料整理：孙波 IT CFAC gaoxindiannaoxuexiao
2010年9月1日
?PC personal computer 个人计算机 ?IBM International Business Machine 美国国际商用机器公司的公司简称，是最早推出的个人 计算机品牌。 ?Intel 美国英特尔公司，以生产CPU芯片著称。 ?Pentium Intel公司生产的586 CPU芯片,中文译名为“奔腾”。 ?Address地址 ?Agents代理 ?Analog signals模拟信号 ?Applets程序 ?Asynchronous communications port异步通信端口 ?Attachment附件 ?Access time存取时间 ?access存取 ?accuracy准确性 ?ad network cookies广告网络信息记录软件 ?Add-ons 插件 ?Active-matrix主动矩阵 ?Adapter cards适配卡 ?Advanced application高级应用 ?Analytical graph分析图表 ?Analyze分析 ?Animations动画 ?Application software 应用软件 ?Arithmetic operations算术运算 ?Audio-output device音频输出设备 ?Basic application基础程序 ?Binary coding schemes二进制译码方案 ?Binary system二进制系统 ?Bit比特 ?Browser浏览器 ?Bus line总线 ?Backup tape cartridge units备份磁带盒单元 ?Business-to-consumer企业对消费者 ?Bar code条形码 ?Bar code reader条形码读卡器 ?Bus总线 ?Bandwidth带宽 ?Bluetooth蓝牙 ?Broadband宽带 ?Business-to-business企业对企业电子商务 ?cookies-cutter programs信息记录截取程序 ?cookies信息记录程序
计算机专业英语教程(第三版)练习答案
计算机专业英语教程Array第三版练习参考答案 Unit 1 [Ex 1] 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10. F [Ex 2] 1. input, storage, processing, and output 2. power; speed; memory 3. central processing unit 4. internal; primary; memory 5. keyboard; central processing unit; main memory; monitor [Ex 3] A. 1. F 2. D 3. G 4. C 5. B 6. A 7. E 8. H B. 1. user 2. monitor 3. data 4. keyboard 5. data processing 6. information 7. computer 8. memory [Ex 4] 1. input device 2. screen, screen 3. manipulates 4. instructions 5. retrieve 6. code 7. hard copy 8. function [Ex 5] 1. T 2. T 3. F 4. F 5. T 6. F 7. T 8. F Unit 2 [Ex 1] 1. T 2. F 3. T 4. F 5. T 6. T 7. T 8. F [Ex 2] 1. sizes, shapes, processing capabilities 2. supercomputers, mainframe computers, minicomputers, microcomputers 3. mainframe computer 4. microcomputers, storage locations 5. protables, laptop computers/notebook/palm-sized computer. desktop workstations 6. semiconductor 7. CPU, memory, storage, devices, processing, users 8. microprocessor chip [Ex 3] A. 1. C 2. A 3. H 4. I 5. E 6. F 7. G 8. B B. 1. capacity 2. device 3. laptop computer 4. Portable computers 5. Silicon 6. semiconductor 7. workstation 8. voltage 9. RAM 10. ROM [Ex 4] 1. portable 2. access 3. main memory 4. sophisiticated programs 5. processing capability 6. instructions 7. computation 8. computer professional [Ex 5] 1. T 2. T 3. T 4. F 5. F 6. T 7. F 8. T 9. F 10. T 11. F 13. T 14. T Unit 3 [Ex 1] 1. T 2. F 3. T 4. T 5. T 6. T 7. F 8. F 9. T 11. T 12. F 13. F 14. T [Ex 2] 1. microprocessor 2. bus 3. register 4. control unit 5. processor 6. binary 7. arithmetic, logical 8. milliseconds, nanoseconds. 9. instruction 10. execution 11. megahertz 12. wordsize [Ex 3] A. 1. F 2. A 3. J 4. C 5. D 6. E 7. H 8. I 9. B 10. G B. 1. Storage 2. chip 3. registers 4. ALU 5. bus 6. control unit 7. machine language 8. binary system 9. bits 10. computer program [Ex 4] 1. configuration 2. converts 3. data buses 4. characters
计算机专业英语教程(第四版)习题答案解析
计算机专业英语（第四版）课后习题答案 Unit 1 [Ex 1] 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10. F [Ex 2] 1. input, storage, processing, and output 2. power; speed; memory 3. central processing unit 4. internal; primary; memory 5. keyboard; central processing unit; main memory; monitor [Ex 3] A. 1. F 2. D 3. G 4. C 5. B 6. A 7. E 8. H B. 1. user 2. monitor 3. data 4. keyboard 5. data processing 6. information 7. computer 8. memory [Ex 4] 1. input device 2. screen, screen 3. manipulates 4. instructions 5. retrieve 6. code 7. hard copy 8. Function [Ex. 5] 新处理器开始IT技术的新时代 New Processors Open New Era of IT Technologies Last week, Intel introduced to the public in Russia and other CIS countries a family of processors Intel Xeon E5-2600. They are more powerful and reliable and, importantly, are very economical in terms of energy consumption. Their presence opens a new era in the field of IT technologies and means that the cloud technology is getting closer. These processors are primarily designed for servers, data centers (DPC) and supercomputers. The emergence of this class of devices is not accidental. According to the regional director of Intel in Russia and other CIS states Dmitri Konash who spoke at the event, the market of IT-technology is developing so rapidly that, according to forecasts, by 2015 there will be 15 billion devices connected to the Internet, and over 3 billion of active users. 上周，英特尔公司向俄罗斯和其它独联体国家的公众推出了英特尔Xeon E5-2600系列处理器，它们更加强大可靠，尤其是在能量消耗方面更加经济实惠。它们的问世意味着IT技术领域开始了一个新时代，标志着云技术距离我们越来越近。 这些处理器主要是为服务器、数字处理中心和超级计算机设计的。这种处理器的出现并非偶然。根据英特尔公司俄罗斯和其他独联体地区负责人Dmitri Konash就此事发表的看法，IT技术市场的发展速度极快，根据预测，到2015年与英特网连接的设施将有150亿，用户超过30亿。 [Ex 6] 1. T 2. T 3. F 4. F 5. T 6. F 7. T 8. F Unit 2 [Ex 1] 1. T 2. F 3. T 4. F 5. T 6. T 7. T 8. F [Ex 2] 1. sizes, shapes, processing capabilities
计算机英语(第4版) 刘艺 课文参考译文
《计算机英语（第4版）》参考译文 第一单元：计算机与计算机科学 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，然后通过对数字数据进行运算或对其他形式的信息进行处理来执行该程序。 要不是由于计算机的发展，现代的高科技世界是不可能产生的。不同类型和大小的计算机在整个社会被用于存储和处理各种数据，从保密政府文件、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，计算机都是必要的工具，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 第一台加法机是法国科学家、数学家和哲学家布莱斯?帕斯卡于1642年设计的，它是数字计算机的先驱。这个装置使用了一系列带有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转动轮子，就可以将数字彼此相加。17世纪70年代，德国哲学家和数学家戈特弗里德?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意。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，英国数学家和发明家查尔斯?巴比奇，提出了现代数字计算机的原理。他构想出旨在处理复杂数学题的若干机器，如差分机。许多历史学家认为，巴比奇及其合伙
计算机专业英语
计算机专业英语
?PC (Personal Computer) 个人计算机 ?CPU (Central Processing Unit) 中央处理器 ?RAM (Random-Access memory) 随机存储器 ?ROM (Read-Only Memory) 只读存储器 ?BIOS (Basic Input/Output System) 基本输入输出系统 ?IDE (Integrated Drive Electronics) 智能磁盘设备 ?PCI (Peripheral Component Interconnect) 外部设备接口 ?SCSI (Small Computer System Interface) 小型计算机系统接口 ?CD-ROM (Compact Disc, Read-Only Memory) 只读光盘 ?EEPROM (Electrically Erasable Programmable Read-Only Memory) ?电可擦除只读存储器 ?DVD-ROM (Digital Versatile Disc, Read-Only Memory) ?只读数字化视频光盘 ?USB (Universal Serial Bus) 通用串行总线 ?LAN (Local Area Network) 局域网 ?DSL (Digital Subscriber Line) 数字线用户 ?VDSL (Very high bit-rate DSL) 甚高位率数字线用户 ?POST (Power-On Self-Test) 开机自检 ?TFT(Thin-Film Transistro) 薄膜晶体管 ?LCD(Liquid Crystal Display) 液晶显示屏 ?CRT(Cathode Ray Tube) 阴极射线管 ?DLP(Digital Light Processing) 数字光处理技术 ?LCoS(Liquid Crystal On Silicon) 硅基液晶（也缩写为LCOS） ?SED(Surface-conduction Electron-emitter Display) 表面传导电子发射显示?OLED(Organic Light-Emitting Diode) 有机发光二极管 ?PDP(Plasma Display Panel) 等离子显示器
计算机专业英语
Chapter1 Competencies After you have read this chapter, you should be able to: 1. Explain the five parts of an information system: people, procedures, software, hardware, and data. 2. Distinguish between system software and application software. 3. Discuss the three kinds of system software programs. 4. Distinguish between basic and specialized application software. 5. Identify the four types of computers and the four types of microcomputers. 6. Describe the different types of computer hardware including the system unit, input, output, storage, and communication devices. 7. Define data and describe document, worksheet, database, and presentation files. 8. Explain computer connectivity, the wireless revolution, and the Internet. 第一章能力 当你阅读本章，你应该能够： 1。解释了信息系统的五个部分：人，程序，软件， 硬件和数据。
计算机专业英语教程(第三版)(unit5——)
Unit 5 Ex1: 1 T 2 T 3 F 4 T 5 F 6 F 7 F 8 T 9 T 10 T 11F 12T 13F 14F 15T 16T 17F 18T 19F 20F 21T 22T 23T EX2 1.mail, courier 2.hub, star 3.local area network 4.packets 5.Ethernet 6.kilobits per second, megabits per second, gigabits per second 7.circuit switching 8.reassembled 9.internet protocol, transmission control protocol 10.datagrams 11.frames 12.binary, decimal EX3 part A 1 C 2 E 3 B 4 F 5 A 6 D 7 H 8 G EX3 part B 1.hub 2.zipped 3.decimal 4.frame 5.binary number 6.internet 7.packet 8.bandwidth EX4 1.forwarded 2.reassembled 3.are encapsulated 4.cable 5.bursty 6.submit 7.are retransmitted 8.protocol EX5
1.IP address 2.notation 3.dotted-decimal https://www.360docs.net/doc/31567818.html,puter network 5.background 6.shared 7.geographic 8.privacy Exercise to the Passage for Reading EX6 1.有意为维修技师使用所留 2.被弃的、丢失的或损坏了的数据都进了数据桶。 3.比大多数人怀疑的那样有更少的相同之处。 4.只能由真正有特殊才能的人所打造的核心技术。 5.程序和文件 6.（1）和拓展程序所能（5）敏感信息的干涉者 7.隐藏的特性和控制开发复杂性 8.（2）意在用权宜而不清晰的方式解决某一特别难以解决情形的聪明的编程窍门。 9.不能很好地和人沟通 10.对程式，数据结构或整个程序 11.互相指责别人和不适当的团组有关 12.（1）打免费长途电话（2）但并不限于通讯网络 13.眼部疲劳 14.（1）他们认为微不足道或令人讨厌的问题。 15.没人能发现这些漏洞，或者，即便发现了，也不会探究利用。 16.受雇攻入某地以检测其安全性 17.用了很多GO To语句，例外语句或其它非结构化的分支构造 18.其后，没有定时作适当的压制（炸弹爆炸）的工作， 19.善意 20.在发布前很久 21.这种技术可能不能运转，如果真是这样，人们再不会知道是为什么 22.在Suns系统中，是L1—A，在苹果机中，是！ 23.它完全不起作用，系统想做些什么，但被卡住了，不能取得进展 24.（1）指与计算机软硬件相对的人的神经系统，（2）此计算机系统的软硬件 25.在紧急关头，能很快找到程序缺陷并予以修复 26.指头脑封闭的人 Unit 6 Unit6 EX1 1 F 2 T 3 F 4 T 5 T 6 F 7 F 8 T 9 T 10 F 11F 12F 13T
计算机专业英语教程(第四版)习题答案
计算机专业英语教程(第四版)习题答案
计算机专业英语（第四版）课后习题答案 Unit 1 [Ex 1] Fb5E2RGbCAP [Ex 2] 1. input, storage, processing, and output 2. power; speed; 1. F 2. T 3. T 4. F 5. T 6. T 7. T 8. T 9. T 10.
memoryp1EanqFDPw 3. central processing unit memoryDXDiTa9E3d 5. keyboard; [Ex 3] B. A. central processing unit; 1. F 2. D 2. monitor 3. G 4. C 5. B main memory; 6. A 7. E monitorRTCrpUDGiT 8. H5PCzVD7HxA 4. internal; primary;
1. user
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6. information [Ex 4] instructions
7. computer
8. memory 3. manipulates 4.
1. input device 2. screen, screen 5. retrievexHAQX74J0X 8. Function
6. code 7. hard copy
[Ex. 5] 新处理器开始 IT 技术的新时代 New Processors Open New Era of IT Technologies Last week, Intel introduced to the public in Russia and other CIS countries a family of processors Intel Xeon E5-2600. They are more powerful and reliable and, importantly, are very economical in terms of energy consumption. Their
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计算机专业英语的第四版课后习题翻译
中译英参考答案 Unit 1 A computer system consists of hardware system and software system. The hardware of the computer is usually divided into three major parts or three primary subsystems: the CPU, the memory subsystem, and the I/O subsystem. The CPU performs many operations and controls computer. The memory subsystem is used to store program being executed by the CPU, along with the program’s data. The I/O subsystem allows the CPU to interact with input and output devices such as the keyboard and monitor of a personal computer. The components of the computer are connected to the buses. The part of the computer that performs the bulk of data processing operations is called the central processing unit and is referred to as the CPU. In microcomputer, it is often called the microprocessor. The CPU is made up of three major parts: control unit, ALU, and register set. Memory is also known as internal memory or main memory. It refers to the circuits in the computer that hold whatever programs and data are available for immediate use by the CPU. I/O subsystem includes I/O devices and interface. There are a wide variety of I/O devices, such as mouse, printer, sensor, disk, and so on. Input-output interface provides a method for transferring information between internal storage and external I/O devices. Peripherals connected to a computer need special communication links for interfacing them with the CPU. The purpose of the communication link is to resolve the differences that exist between the central computer and each peripheral. Unit 2 Storage hardware provides permanent storage of information and programs for retrieval by the computer. Hard disk drives store information in magnetic particles embedded in a disk. Usually a permanent part of the computer, hard disk drives can store large amounts of information and retrieve that information very quickly. Although fixed hard drive systems offer faster access and have a higher storage capacity than optical discs, optical disc systems use removable media – a distinct benefit. Optical discs – primary CDs and DVDs – are much more widely used than removable hard drive systems. They are the standard today for software delivery, as well as commonly used for storing high-capacity music and video files. There are also versions of both CD and DVD drives available for home audio and home theater use. Optical discs are commonly referred to as compact discs. CD and DVD discs are read by CD and DVD drives. The speed of a CD or DVD drive is rated as 24x, 32x, 36x, and so on. These labels describe how fast the drive is compared to the first version of that drive. For example, a 36x drive is 36 times the speed of the baseline unit that was originally manufactured. Most optical