What are the functions of computer networks

Computer networks have functions such as resource sharing, network communication, distributed processing, centralized management, and load balancing. Detailed introduction: 1. Resource sharing, including hardware resources, software resources, data resources and channel resources; 2. Network communication, which can transmit various types of information, including data information and graphics, images, sounds, video streams and other multimedia Information; 3. Distributed processing, dispersing the tasks to be processed to various computers instead of concentrating them on a large computer; 4. Centralized management, such as database information retrieval system, transportation department ticket booking system, etc.

The main purpose of computer network functions is to realize resource sharing between computers, network communication and centralized management of computers.

1. Resource sharing

(1)Hardware resources: including various types of computers, large-capacity storage devices, computer peripherals, such as color printers , electrostatic plotter, etc.

(2) Software resources: including various application software, tool software, support software for system development, language processing programs, database management systems, etc.

(3) Data resources: including database files, databases, office documents, enterprise production reports, etc.

(4) Channel resources: Communication channels can be understood as transmission media for electrical signals. The sharing of communication channels is one of the most important shared resources in computer networks.

2. Network communication

Communication channels can transmit various types of information, including data information and graphics, images, sounds, video streams, etc. Multimedia information.

3. Distributed processing

Distribute the tasks to be processed to various computers instead of concentrating them on a large computer. In this way, not only can the complexity of software design be reduced, but also work efficiency can be greatly improved and costs reduced.

4. Centralized management

When computers are not connected to the Internet, each computer is an "information island". When managing these computers, they must be managed individually. After computers are connected to the Internet, the entire network can be managed from a central location. Such as database information retrieval system, transportation department ticket booking system, military command system, etc.

5. Balancing load

When the task load of a certain computer in the network is too heavy, through the control and management of the network and application programs, the jobs will be distributed to other computers in the network. Completed by multiple computers.

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