众文网1.跪求 毕业论文 英文材料 计算机相关
计算机专业也很很多类的，不知LZ要写哪一方面的阿？给出资料如下To implement the relational model for the same partial LIMS schema presented in Fig. 1 for the hierarchical model, tables would need to be created for each entity relationship in the schema. Fig. 3 shows the mapping required in the relational model for the Customer-Plant and Plant-Grade relationships of the LIMS schema, where each customer (company) has one or more plant sites and each plant purchases one or more grades of products. A table is created for the Customer, which includes fields for Customer ID and Customer Name. A table is also created for the Plant, which contains the Customer ID, Plant ID, Plant Name, and Plant Address. In this situation, the Customer ID would be the primary key in the customer table, but the secondary key in the plant table. It links the information contained within the two tables and implicitly forms a relationship between the two entities. To describe the Plant-Grade relationship, Grade and Plant-Grade tables are added. Instead of direct navigation as described in the hierarchical and network models, the relational model requires joins for the Customer, Plant, and Grade tables to find out which Customer purchases a particular Product-Grade. Fig. 3 shows that in order to navigate to a related record, the secondary key is used to find the primary key in an index file, which contains a sorted list of keys and physical addresses for each table record. Multiple database accesses are usually required to locate one record in an index, and as the table grows larger, the more database accesses are required. This is why relational databases slow down as they get larger. Unlike the hierarchical and network databases, which depend on the physical structure of data, a relational database provides data independence, which means that the physical and logical structures are separated so that the user applications do not have to worry about the actual physical address of data. Other features of relational databases include concurrency, recovery, transaction, and an ad hoc query facility. 2.3.1. Client-server relational model Originally all database files were stored on mainframes or minicomputers. Since dumb terminals were used to access the host computer, all processing occurred on the host. Relational databases were developed in this environment, in which the database server resided on the host and the application programs were processes on the host. When a large number of users needed access to the database information simultaneously, a bottleneck occurred on the host CPU. Dumb terminals were eventually replaced with powerful microcomputer workstations and the Client server architecture was developed to take advantage of the power of the workstation. The application processes were now run on the clients, while the database server remained on the host.。
2.计算机毕业论文英文摘要翻译
With the rapid development of science and technology, the automation of library management software and hardware required conditions are ripe. Therefore, I thought according to software engineering and management information system development steps to school libraries in the context of application requirements, design and development of the library management system.
This article describes Borland JBuilder 2006 Enterprise development environment, the detailed process of the system, made of library information management, the basic objective of sharing resources, thus promoting the pace towards the digital library, and described the system design and functional design, from the Book of the storage register to the query view, from the library card issued to borrow books form a whole automated management, software engineering point of view from a scientific and rigorous exposition.
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3.跪求 毕业论文 英文材料 计算机相关
计算机专业也很很多类的，不知LZ要写哪一方面的阿？给出资料如下To implement the relational model for the same partial LIMS schema presented in Fig. 1 for the hierarchical model, tables would need to be created for each entity relationship in the schema. Fig. 3 shows the mapping required in the relational model for the Customer-Plant and Plant-Grade relationships of the LIMS schema, where each customer (company) has one or more plant sites and each plant purchases one or more grades of products. A table is created for the Customer, which includes fields for Customer ID and Customer Name. A table is also created for the Plant, which contains the Customer ID, Plant ID, Plant Name, and Plant Address. In this situation, the Customer ID would be the primary key in the customer table, but the secondary key in the plant table. It links the information contained within the two tables and implicitly forms a relationship between the two entities. To describe the Plant-Grade relationship, Grade and Plant-Grade tables are added. Instead of direct navigation as described in the hierarchical and network models, the relational model requires joins for the Customer, Plant, and Grade tables to find out which Customer purchases a particular Product-Grade. Fig. 3 shows that in order to navigate to a related record, the secondary key is used to find the primary key in an index file, which contains a sorted list of keys and physical addresses for each table record. Multiple database accesses are usually required to locate one record in an index, and as the table grows larger, the more database accesses are required. This is why relational databases slow down as they get larger. Unlike the hierarchical and network databases, which depend on the physical structure of data, a relational database provides data independence, which means that the physical and logical structures are separated so that the user applications do not have to worry about the actual physical address of data. Other features of relational databases include concurrency, recovery, transaction, and an ad hoc query facility. 2.3.1. Client-server relational model Originally all database files were stored on mainframes or minicomputers. Since dumb terminals were used to access the host computer, all processing occurred on the host. Relational databases were developed in this environment, in which the database server resided on the host and the application programs were processes on the host. When a large number of users needed access to the database information simultaneously, a bottleneck occurred on the host CPU. Dumb terminals were eventually replaced with powerful microcomputer workstations and the Client server architecture was developed to take advantage of the power of the workstation. The application processes were now run on the clients, while the database server remained on the host.。
4.关于计算机方面的英语论文 急需
Good Moring, ladies and gentlemen, Today my topic of my speech is the advantages and the disadvantages of computers. In this information age/era, computer is very important in our everyday lives. It definitely make our lives easier in many ways. First of all, it helps us communicate with people all around the world, which means it not only save a lot of time when we have to send a message from one country to another, but also save a large of unnecessary troubles for us. Secondly, it gives many unemployed people chances to get a job. We can use computers and the Internet to sell and buy almost anything nowadays. Last but not least, many wonderful games come along with the advent of computers. And playing computer games is one of the most popular ways to entertain and to relax. So, computers are really good for our human beings in many different aspects. However, every coin has two sides. Computers also bring us many troubles. It gets across much unhealthy information and causes many crimes. But if we can use computer properly, it is still an amazing invention to us. Therefore, I hope that everyone, especially the young people, like me, can really appreciate the help of computers and make the best use of them. There are many advantages to online and computer-based learning when compared to traditional face-to-face courses and lectures. There are a few disadvantages as well. Advantages of online or computer-based learning Class work can be scheduled around work and family Reduces travel time and travel costs for off-campus students Students may have the option to select learning materials that meets their level of knowledge and interest Students can study anywhere they have access to a computer and Internet connection Self-paced learning modules allow students to work at their own pace Flexibility to join discussions in the bulletin board threaded discussion areas at any hour, or visit with classmates and instructors remotely in chat rooms Instructors and students both report eLearning fosters more interaction among students and instructors than in large lecture courses eLearning can accommodate different learning styles and facilitate learning through a variety of activities Develops knowledge of the Internet and computers skills that will help learners throughout their lives and careers Successfully completing online or computer-based courses builds self-knowledge and self-confidence and encourages students to take responsibility for their learning Learners can test out of or skim over materials already mastered and concentrate efforts in mastering areas containing new information and/or skills Disadvantages of online or computer-based learning Learners with low motivation or bad study habits may fall behind Without the routine structures of a traditional class, students may get lost or confused about course activities and deadlines Students may feel isolated from the instructor and classmates Instructor may not always be available when students are studying or need help Slow Internet connections or older computers may make accessing course materials frustrating Managing computer files and online learning software can sometimes seem complex for students with beginner-level computer skills Hands-on or lab work is difficult to simulate in a virtual classroom. 我自己写的，推荐puter。
5.计算机专业英语论文1000字左右 谢谢
In 1972, IBM introduced flexible diskettes as a medium for loading programs into mainframe computers. Because the disks were so flexible, they were nicknamed floppy disks. They are inexpensive, small, and easy to handle, store, and send through the mail. Most computers have at least one floppy disk drive.
Floppy disks, also called diskettes, are available in two sizes: 3.5 and 5.25 inches. For MS-DOS based computers, the 3.5-inch disks are available in 720-kilobyte (double - density), 1.44-megabyte (high - density), and 2.88-megabyte (extended - density) capacities. The 5.25-inch disks have a density of 48 tracks per inch, whereas high-density disks have a density of 96 tracks per inch. Almost all 3.5-inch floppy disks have a density of 135tracks per inch.
The earliest models of floppy disks were single-sided. The addition of another read/write head in the disk drive led to the use of double-sided floppy disk, and doubled the capacity of the disk. Today, all floppy disks are double-sided.
If you examine a 3.5-inch floppy disk, you will see that a metal sleeve covers the read/write slot. When you insert the disk into a disk into a disk drive, the metal sleeve slides back, exposing the read/write slot. The read/write head of the floppy disk drive can position itself over specific tracks. Because of the metal sleeve and the rigid plastic casing, the 3.5-inch floppy disk is less vulnerable to damage than the 5.25-inch floppy disk.
To use the files or programs that are on a floppy disk, you must first insert the disk into a floppy disk drive. Floppy disk drives are commonly referred to as the A drive and the B drive. Check your computer manual to see which drive is A and which is B.
6.计算机毕业论文英文摘要在线等
Abstract along with computer technology's full scale development, our life as well as the work is day by day convenient. In order to cause the management to be more scientific, to be more convenient, is more reasonable. At the same time, can also help the telecommunication cost concerned personnel to raise the working efficiency and the grade of service. Reduces the nonessential loss for the telecommunication bureau. Thus effective enhances the telecommunication bureau economy the benefit. The terminal cost system's development then fast develops, it can realize to the different model program controlled switch the primitive telephone bill information which fixed time or hands down from generation to generation immediately to the cost center carries on prompt accurate classified, the inquiry, the browsing, the revision, the deletion, statistical, the telephone bill information printing and so on. Can inquire the customer telephone conversation data promptly, avoids causing the phone bill to dispute, enhances the customer the degree of satisfaction. this article by through to the telecommunication bureau cost center routine work's analysis, realized fully based on the management science angle the computer technology development has managed the influence which for the telecommunication bureau brings, in this paper had demonstrated comprehensively used the VB program control to realize the automated cost system's design and to realize in the cost system's immediate cost pattern plate function. key words: VB cost system。
7.急需一篇有关计算机方面的英语论文
With the rapidly developing of computer technology, especially in the network, the storage and management of file is more convenient. In this paper, the basic theory and the method of the soft project were used in the whole system, and basing on the analysis of the system's demand, the measure was brought forward. In the building of the network, ASP technology was used to realize B/S system. Because of the integrity of ASP technology and Database technology the users can inquire about the specimen they need freely with the disposal of data by the server. In this way ,the inter dynamic of the webpage was improved and the whole system could server the users better..。
8.求有关计算机方面的英语论文.带翻译
ASP 个人网站（毕业设计+论文）
（专业且庞大的的毕业设计论文技术人员，超大数量的毕业论文范文，专业代做毕业设计，代写毕业论文，彻底帮您解决毕业设计的难题，专业毕业设计网原创发布最新发布）
摘要：计算机技术的发展，特别是网络技术的飞速发展，给文档的保存和管理提供极大的方便。本论文中，将软件工程的基本原理和方法应用到整个系统，并对其进行需求分析，提出了解决问题的具体方法。在具体制作中，用ASP技术来实现B/S系统，ASP技术与数据库技术结合，用户在浏览器端可以随意查询自己需要的标本，而数据的后台操作则由服务器端处理。这样提高了网页的互动性，使整个系统能更好的为用户服务。
关键词：软件工程 ASP 动态网页
The Digitization of Southwest Forestry College's Sample Room
—The Construction of Dynamic Websites
Chen Hai
(Dept. of Computer and Information Science, Southwest Forestry College, Kunming, Yunnan, 650224, China)
Abstract:With the rapidly developing of computer technology, especially in the network, the storage and management of file is more convenient. In this paper, the basic theory and the method of the soft project were used in the whole system, and basing on the analysis of the system's demand, the measure was brought forward. In the building of the network, ASP technology was used to realize B/S system. Because of the integrity of ASP technology and Database technology the users can inquire about the specimen they need freely with the disposal of data by the server. In this way ,the inter dynamic of the webpage was improved and the whole system could server the users better..
Key words:Soft Project; ASP; Dynamic Webpage
详细出处参考：
9.计算机毕业设计论文摘要和关键字要英文翻译
Since the 21st century, the human economy has developed high speed, the people live have had the change which changes with each new day, specially computer's application and popularization to economical and social life each domain. Along with the computer in the social life each domain's widespread utilization, the computer virus attack and the guard technology unceasingly is also developing, has brought the huge destruction and the latent threat for the computer system. It is reported that various countries suffer the computer virus infection and the attack event are counted by the 100 million, has disturbed the normal human society life seriously, has brought the huge latent threat and the destruction for the computer network and the system. Along with the computer, the network utilization popularizes unceasingly, thoroughly, will guard against the computer virus to receive various countries to take seriously more and more. In order to ensure system's security and unimpeded, therefore, studies the computer virus the measure to be imminent. This article obtains from computer's characteristic, to come the preliminary discussion to cope with the computer virus the method and the measure.
计算机Computer，、
病毒 virus
系统安全system safety
10.求计算机毕业论文资料管理系统的摘要的英文译文
Information management system is typical of the information management system, including its main development background database creation and maintenance and the front-end application development aspects. Regarding the former requirement to establish consistency and integrity of the database-and data security for good. And the latter demanded the application functions, and easy-to-use features. Therefore, I combined information management systems to meet the requirements of Visual Foxpro database management system VFP language theory, VFP database technology for deeper study and application. Completion of the main management information system requirements analysis, functional modules, and thus design a database structure and application procedures. The result of running the system proves, I designed the system to meet the lending, information library staff and senior management of three requirements. System Development Company of Microsoft Visual Foxpro 6.0. use its powerful visualization functions and interface to the database, a prototype structure first, and gradually increase the functional, eventually meet the demand. System widely used SQL query, friendly interface and more powerful. Deficiencies in the data access when a large volume, the result of the decline in performance and not conducive to effective data sharing Improvement in the future should consider using SQL Server as a database, visit solution speed and data sharing issues. Performance of the system sought to easy-to-use, high scalability and maintainability. Keywords : relational database SQL Visual Foxpro 6.0 information management systems, systems development, Information Systems。
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