What is the network made of, and what can the network do?

1. Network communication.

The definition of network communication is: with the background of the world's massive information, with a large number of participants as the object, the participants are also the recipients and publishers of information and can give feedback to the information at any time, and its text formation and reading are completed in the hypertext of various meanings linked between various texts at will, and formed with different cultural levels.

2. Network**.

The network, also known as IP, is transmitted over the Internet Protocol (IP). The network** converts the sound into a data signal through the gateway and compresses it into packets before it is transmitted from the Internet, and when the receiver receives the packet, the gateway decompresses it and converts it back into sound for the other party to listen to.

3. Network hard disk.

"Network hard disk" is an exclusive storage space, users can log in through the Internet, can be convenient to upload, ** files, and the unique sharing, grouping function has broken through the concept of traditional storage. Compared with other similar products, the "network hard disk" product has four characteristics: intuitive preview, four-level sharing, group management, and stability and security.

4. Internet finance.

Online finance, also known as e-finance, refers to financial activities realized on the Internet, including online financial institutions, online financial transactions, online financial markets and online financial supervision.

5. Online education.

Network education refers to a kind of network teaching and learning service provided to educators and learners in the network environment, guided by modern educational ideas and learning concepts, giving full play to the advantages of various educational functions of the network and rich network education resources, which is embodied in the use of digital technology to deliver content and carry out learner-centered non-face-to-face education activities. <>

With the Internet, people can not only share resources, but also exchange information, keep in touch, and have fun. It mainly has the following functions: 1. The main function of the resource sharing network is resource sharing.

Shared resources include software resources, hardware resources, and various data resources stored in public databases. These resources can be shared partially or fully by online users, thus greatly improving the utilization of system resources. 2. The computer system that quickly transmits information distributed in different regions can transmit various information, exchange data, and send e-mails through the network in a timely and high-speed manner, so that people can connect more closely.

3. Improve the reliability of the system in the network, because the computers are cooperating with each other and backing up each other, as well as using some backup equipment and some load scheduling, data fault tolerance and other technologies in the network, so that when a part of the network fails, other parts of the network can automatically take over its tasks. 4. It is easy to carry out distributed processing in the network, and a relatively large problem or task can also be decomposed into several sub-problems or tasks, and scattered to different computers in the network for processing and calculation. This kind of distributed processing capability is very effective in the research and development of some major topics.

5. Integrated information servicesIn today's information society, individuals, offices, libraries, enterprises and schools are generating and processing a large amount of information all the time. This information may be text, numbers, images, sounds or even **, which can be received through the Internet.

A computer network consists of two parts: hardware and software.

Network hardware: responsible for data processing and data generation, it provides a reliable transmission channel for data transmission. Network hardware includes computer systems, communication lines, and communication equipment.

A computer system is the basic module of a network and is the object to which it is connected. Its main role is to be responsible for the collection, processing, storage and dissemination of data and information. A communication line refers to a communication medium and its connecting parts.

Communication equipment refers to network connection equipment and network interconnection equipment, including network cards, hubs, repeaters, switches, bridges and routers and other communication equipment.

Network software: generally refers to the system's network operating system, network communication protocol and application-level special software that provides network service functions. In a computer network environment, it is used to support digital communication and various network activities.

The system connected to the computer network is usually configured with different network application systems according to the special resistance of the system itself, its capabilities and service objects. Its purpose is to share the resources of other systems in the network with local users, or to make the functions and resources of local systems available to other users in the network.

A computer network is a system composed of computer systems, network nodes, and communication links. From the perspective of logical function, a network can be divided into two parts: resource subnet and communication subnet.

The network system is centered on the communication subnet, which is located in the inner layer of the network. The communication subnet realizes the network communication function, including the communication processing work such as data processing, transmission and exchange. That is, the transfer of information from one primary computer to another.

Communication subnets mainly include switches, routers, bridges, repeaters, hubs, network cards, cables and other equipment and related software.

Resource subnets share resources, including data processing, network resources, and network services. Resource subnets mainly include hosts and their peripherals, servers, workstations, network printers, and other peripherals and their related software. A computer network connected computer system can be a jumbo, mainframe, minicomputer, workstation, microcomputer, or other data terminal device.

The communication subnet is composed of network nodes, communication equipment, communication lines, etc., and is responsible for the communication processing work of the whole network, such as data transmission, exchange, processing and transformation.

The network node, also known as the network unit, is the general term for various data processing equipment, data communication control equipment (CCP) and data terminal equipment in the network system. There are two types of network nodes: transfer nodes and access nodes. A transit node is a node that supports network connection performance, and it transfers and transmits information through communication lines, such as concentrators, terminal controllers, etc.

The access node is the source node and the destination node of information exchange, which plays the role of source and host, such as terminal and host computer.

Communication equipment refers to all kinds of network connection equipment, including repeaters, bridges, switches, routers, etc.

Communication lines refer to the transmission medium and its media connection components, including twisted pairs, coaxial cables, optical fibers, etc.

In addition to the above physical components, a computer network should also have a well-functioning software system to support network functions such as resource sharing and data transmission. In order to communicate data between network components, both parties must have a set of communication rules or conventions that can understand each other and be followed consistently across the network. Such as the format of data transmission, the start and stop bits of data transmission, the transmission speed, the error control in transmission, etc.

These rules or conventions are called network protocols. It is an important symbol to distinguish the interconnection between computer networks and general computers. It can be said that computer network communication is premised on network protocols.

The web is made up of the principle of a spider named Intel making a web.