Tisch
Application and future development of computer network
As we all know, computer network communication technology is developing rapidly at an unexpected speed. With the rapid development of network communication technology, the Internet has gradually penetrated into every corner of people's lives and work. The development of information technology is one of the most important signs of whether human society realizes modernization.
Keywords: computer network, application and future development
I. Introduction
Computer network is a multi-disciplinary and high-tech application technology, involving supercomputer technology, network technology, middleware technology and computer science research and application technology. Computer network is the foundation and core of promoting informatization, digitalization and globalization, and can realize the comprehensive sharing of computing resources, storage resources, data resources, information resources and knowledge resources. In the new information network trend, the functions of computer network mainly include: massive information transmission, high-speed processing and security control. Multi-channel transmission, such as Bluetooth technology, radio wave, twisted pair and coaxial cable, optical fiber, satellite, etc. As well as the integration of telecommunication network, mobile network, cable TV network and computer network, ATM computer network with asynchronous transmission mode is adopted to store information, which is convenient for people to receive information at any time. Computer network constitutes the core of information network system.
Second, the application of computer network
1. The application of computer network in the construction of electronic reading room of library
With the emergence of a large number of electronic publications, libraries have also established electronic reading rooms to facilitate the retrieval and utilization of these electronic resources. Through the establishment of electronic reading room, readers can browse online information, query electronic literature, search CD-ROM database, and enjoy movies, music and multimedia online teaching.
The specific forms are as follows: a. E-mail-based digital reference service: generally, a "reference consultation" or "inquiry" connection is established on a website or webpage, through which the consultation questions can be sent to the corresponding consultants by e-mail, and the consultants then send the answers to the users by e-mail. This method is widely used by people from all walks of life. B. Digital reference service based on real-time interactive technology: In order to maintain the real-time interactive ability of traditional face-to-face consultation in digital reference service. At present, online consultation and navigation services of libraries generally take this form. After the reader enters the "Online Consultation Navigation" interface, when the reader fills in the consultation topic and presses "OK to submit the consultation content", the consultation topic immediately appears in the next column. According to the retrieval topics put forward by readers, librarians use various online search tools and various existing periodical databases to carry out subject retrieval. Some topics are very professional, so librarians who are familiar with consulting technology must undertake this job.
2. Application in video surveillance network
In China, whether it is an economically developed coastal city or a large and medium-sized city to be developed in the west, alarm monitoring systems have spread all over the city, with monitoring devices in almost every building, every community, even every square and every intersection. Such as; Classrooms and playgrounds in schools; Bank business hall, ATM public safety management and supervision; Urban traffic management, highways and airports, etc. Shopping malls, supermarkets and shopping centers; Industrial production line, warehouse and factory monitoring and so on.
3. Application in e-commerce
All kinds of businessmen find that the Internet can provide services for their various needs; Product promotion, information exchange, new product development, order acquisition, collection of electronic publications and letters, information in database, new technical suggestions, establishment and maintenance of business links, acquisition of market information, computer online shopping, etc. Online transactions are non-face-to-face transactions, so "transaction security" is very important in the development of e-commerce. In order to improve the security of e-commerce, the security of computer network itself can provide different degrees of security for e-commerce transactions. The main forms are firewall technology, data encryption technology, identity authentication technology and digital signature technology. From this, we can see the benefits of doing business on the computer network. Businessmen use the scientific and political information on servers all over the world as the basis for guiding their work, thus improving their operating efficiency. The upsurge of e-commerce is also sweeping the land of China.
Third, the future development trend of computer networks
The networking formed by the rapid development of computer network is the foundation and core of promoting informatization, digitalization and globalization, because the computer network system is a global open and digital integrated information system. Various network application systems based on computer networks, through the comprehensive collection, storage, transmission, processing and utilization of digital information in the network, connect human society more closely, affecting and impacting all aspects of human social politics, economy, military affairs and daily work and life. Due to the continuous innovation and development of new technologies, the components of computer networks are also changing.
1. Integration of computer and transmission media.
At present, although the computing speed of computers is getting higher and higher, its development is becoming smaller and smaller. Especially with the popularization of 3G network, the integration of computer and 3G will be the general trend. The boundary between mobile phone and computer will be smaller and smaller, and the development of desktop computer-notebook-mobile phone will be one of the recent developments of computer. Moreover, the mobile phone will eventually replace the computer and become a terminal device that people generally enjoy connecting to the network.
2. Integration of application software and mobile phone.
With the rapid development of mobile phone chips, smart phones have become the mainstream of people's mobile phone applications. The close combination of mobile phone and Internet will be the quickest and most convenient way for people to surf the Internet. Maybe a few years later, the network is no longer called a computer network, but a mobile phone network. The fundamental purpose of designing and building computer networks is for application. Only a computer network that meets people's needs can realize its value. At present, many application systems have been established and are playing an increasingly important role in people's lives. Therefore, how to make all kinds of computer network application systems meet a wider range of application requirements and be more convenient to use will become one of the development directions of computer networks.
3. Wireless transmission media will become the mainstream.
Computer applications will increasingly emphasize comfort and speed. The development of 3G network and the rapid upgrade of wireless network will gradually replace the current wired network form and become the mainstream form of computer network in the future. The concepts of wireless Internet access and anytime Internet access will lead to the revolution of computer Internet access ―― network portability will be the basic requirement for people to apply computer networks in the future. The mobility of computer network is mainly manifested in that people can enjoy information anytime and anywhere through computer network. Therefore, the development of wireless network technology needs to be continuously strengthened and explored. Although the current computer network has been able to achieve basic mobility, the intersection and combination of mobile communication, Netcom, telecommunications and other technologies have not yet achieved all-round interoperability and interconnection, which needs to be continuously strengthened.
4. The intellectual revolution of computer.
With the increasing dependence of human beings on technology, the conventional media such as mouse, keyboard and monitor that people use daily will change and become more intuitive media, such as touch screen input system and voice recognition system. The intelligentization of computer network is mainly manifested in that computer network provides users with more intuitive, convenient and friendly applications by simulating the thinking activities of human brain. Computer keyboards and mice will be updated and replaced by more natural and intuitive technical means in the next five years, and touch, vision and voice control interfaces will be widely used. The intelligent development space of computer network is still very broad, such as intelligent decision-making system, distributed knowledge base system, intelligent distributed control system and intelligent agent technology. The intelligentization of computer network has brought great convenience to people's lives, and it is necessary to continue to strengthen research and development.
Four. conclusion
The combination of computer technology and communication technology based on computer network has become the main trend of information revolution in the world today. The integrated transmission and interactive service of sound, text and pictures that people have long wanted to go to has become a part of human life style. In a word, with the penetration of computer information technology into various fields of economic and social life, the world is gradually entering a new economic era dominated by information industry. The development of Internet, mobile phone and satellite network will have a great impact on human economy and society. People's lives are entering the Internet age.
References:
[1] Ye: Analysis of computer network development trend, Journal of Qinghai University, 20032 15: 57-59.
[2] Fu Juchun: On the development of computer networks, information research, 20 105: 88-89.
Zhu, Zhang Shoulian. Computer network application technology [M]. Beijing: Patent Literature Publishing House.2001.