完整版本科生毕业设计说明书外文文献及翻译Word下载.docx

1、完整版本科生毕业设计说明书外文文献及翻译#Computer networking summarize#Networking can be defined as the linking of people, resources and ideas. Networking occurs via casual encounters, meetings, telephone conversation, and the printed words. Now the computer networking provide beings with new networking capabilities. C

2、omputer network are important for services because service tasks are information intensive. During the is transmitted between clients, coworkers, management, funding sources, and policy makers. Tools with rapidly speed up communication will dramatically affect services.#Computer network growing expl

3、osively. Two decades ago, few people essential part of our infrastructure. Networking is used in every aspect of business, including advertising, production, shipping, planning, bulling, and accounting. Consequently, most corporations in on-line libraries around the world. Federal, state, and local

4、government offices use networks, as do military organizations. In short, computer networks are everywhere.#The growth in networking economic impact as well. An entire industry jobs for people with more networking expertise. Companies need workers to plan, acquire, install, operate, and manage the ad

5、dition computer programming is no longer restricted to individual computers;# programmers are expected to design and implement application software that can communicate with software on other computers.#Computer networks link computers by communication lines and software protocols, allowing data to

6、be exchanged rapidly and reliably. Traditionally, they split between wide area networks （WANs） and local area networks （LANs）. A WAN is a network connected over long-distance telephone lines, and a LAN is a localized network usually in one building or a group of buildings close together. The distinc

7、tion, computers. Today networks carry e-mail, provide access to public databases, and are beginning to be used for distributed systems. Networks also allow users in one locality to share expensive resources, such as printers and disk-systems.#Distributed computer systems are built using networked co

8、mputers that cooperate to perform tasks. In this environment, each part of the networked system does what it is best at. The of a personal computer or workstation provides a good user interface. The mainframe, on the other the results to the users. In a distributed environment, a user might use in a

9、 special language （e. g. Structured Query Language-SQL）, to the mainframe, which then parrrses the query, returning the user only the data requested. The user might then use the data. By passing back the users PC only the specific information requested, network traffic is reduced. If the whole file

10、were transmitted, the PC would then of one network to access the resources on a different type of network. For example, a gateway could be used to connect a local area network of personal computers to a mainframe computer network. For example, if a company this example, using a bridge makes more sen

11、se than joining all the personal computers together in one large network because the individual departments only occasionally need to access information on the other network.#Computer networking technology can be divided into four major aspects.#The first is the data transmission. It explains that a

12、t the lowest level electrical signals traveling across wires are used to carry information, and shows be encoded using electrical signals.#The second focuses on packet transmission. It explains why computer network use packets, and shows . LANs and WANs discussed above are two basic network.#The thi

13、rd covers internetworkingthe important idea that allows system, and TCPIP, the protocol technology used in global internet.#The fourth explains networking applications. It focuses on , and programs provide services such as electronic mail and Web browsing.#Continued growth of the global Internet is

14、one of most interesting and exciting phenomena in networking. A decade ago, the Internet was a research project that involved a few dozen sites. Today, the Internet into a production communication system that reaches millions of people in almost all countries on all continents around the world. In t

15、he United States, the Internet connects most corporations, colleges and universities, as well as federal, state, and local government offices. It will soon reach most elementary, junior, and senior addition, many private residences can reach the Internet through a dialup telephone connection. Eviden

16、ce of the Internets impact on society can be seen in advertisements, in magazines and on television, which often contain a reference to an Internet Web site that provide additional information about the advertisers products and services.#A large organization with diverse networking requirements needs multiple physical networks. More important, if the organization chooses the type network that is best for each task, the organization will network can only communicate with other com