What is the purpose of computer networking

The purpose of computer networking is to realize resource sharing, including the sharing of hardware, software and data resources. The main functions of computer networks include data communication, resource sharing, centralized management, distributed processing, and load balancing; among them, data communication, distributed processing, and web browsing are all based on resource sharing. Resource sharing is the core of computer networks. One of the basic functions.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The main purpose of a computer network is to share resources, including hardware, software and data resources. Specific applications such as data communication, distributed processing, and web browsing are all implemented based on resource sharing, which is one of the basic functions of computer networks.

Computer network refers to the connection of multiple computers and their external devices with independent functions in different geographical locations through communication lines. Under the management and coordination of network operating systems, network management software and network communication protocols , a computer system that realizes resource sharing and information transfer.

The main functions of computer network:

• Data communication

  Data communication is the function of computer network One of the most important functions. Data communication is a communication method and communication service that uses data transmission technology to transfer data information between two terminals according to a certain communication protocol. It can realize the transmission of data information between computers, computers and terminals, and terminals. It is the third largest communication service after telegraph and telephone services. The information transmitted in data communication is expressed in the form of binary data. Another characteristic of data communication is that it is always connected with telematics. It is a generalized information processing including scientific computing, process control, information retrieval, etc.

• Resource sharing

  Resource sharing is one of the main purposes for people to establish computer networks. Computer resources include hardware resources, software resources and data resources. The sharing of hardware resources can improve the utilization of equipment and avoid repeated investment in equipment, such as using computer networks to establish network printers; the sharing of software resources and data resources can make full use of existing information resources, reduce labor in the software development process, and avoid Repeated construction of large databases.

• Centralized Management

  The development and application of computer network technology has caused changes in modern office methods, business management, etc. At present, there are many management information systems, office automation systems, etc., through which centralized management of daily work can be achieved, work efficiency can be improved, and economic benefits can be increased.

• Realize distributed processing

  The development of network technology makes distributed computing possible. For large-scale topics, they can be divided into many small topics, which are completed by different computers respectively, and then concentrated together to solve the problem.

• Load balancing

  Load balancing means that work is evenly distributed to each computer system on the network. The network control center is responsible for distribution and detection. When a computer is overloaded, the system will automatically transfer the load to a lighter computer system for processing.

It can be seen that computer networks can greatly expand the functions of computer systems, expand their application scope, improve reliability, provide convenience to users, and at the same time reduce costs and improve performance and price. Compare.

Expand knowledge:

Two basic principles of resource sharing:

1. Law of large numbers:

Law of large numbers What it means is: If the number of users is large, and their resource usage requirements are sudden and random, then when all users are considered as a whole, the user's overall resource usage requirements become quite smooth and smooth. Relatively stable and predictable.

2. Economies of scale

Economies of scale say: when the resources and the number of users in a system increase in proportion at the same time, within a certain range, the larger the scale of the system, the greater the scale of the system. The system is more economical.

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