Characteristics of the Internet: 1. The Internet breaks through the traditional boundaries of time, space and profession, giving everyone the right to speak freely, with the greatest openness; 2. The rapidity of information dissemination; 3. The computer passes The network can transfer information on the computer to the server, and the server centrally processes the information; 4. The network can enable transmission between hosts through the network, thereby realizing resource sharing; 5. It can achieve load balancing of each server, At the same time, users also save a lot of unnecessary mistakes; 6. Through comprehensive information services, such as online shopping.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
A network refers to connecting multiple computers and their external devices with independent functions in different geographical locations through communication lines. Under the management and coordination of the network operating system, network management software and network communication protocols, A computer system that realizes resource sharing and information transfer.
The Internet, also known as the international network, refers to a huge network connected between networks. These networks are connected by a set of common protocols to form a logically single huge international network. .
Characteristics of the Internet
1. Openness of information
The Internet breaks through the traditional boundaries of time, space and profession. Giving everyone the right to express speech freely has the greatest openness; at the same time, when the audience comments on the information they receive, they do not have to worry about being threatened because their speech touches the interests of relevant parties. This characteristic of online public opinion meets the information needs of the audience to the greatest extent, which is why online media has developed rapidly in recent years. Of course, this will also bring some extreme or wrong information, and public opinion can be easily manipulated, which will reduce the authenticity of the information to a certain extent.
2. Interactivity of information
The interaction between traditional media and the audience often lags behind. Although the interaction between TV broadcasts and the audience avoids lag, only a small number of audiences can participate. , sometimes a certain fee is incurred. Therefore, compared with traditional media, online media is favored by the audience because of its advantages of timeliness, no filtering, and no cost. After reading the post, the audience can express their opinions in a timely manner, which is unmatched by any traditional media.
3. Rapidity of information dissemination
The speed of network communication can be summarized in two words: fast and wide.
The so-called fast speed means that overnight, unified information can be obtained from the north and south of the Yangtze River, the three places on both sides of the Taiwan Strait, and all over the world. As long as the information is explosive enough, it will have enough dissemination, and even more propagation speed. Once the page information of a web page is updated, from the moment the update is completed, as long as you want it, the whole world can get this information. This is the power of the network.
4. Able to realize data information transmission and centralized processing
The computer can transfer the information on the computer to the server through the network, and the server can centrally process the information. In this way, centralized processing can be achieved, and the transmission speed is greatly accelerated.
5. Sharable computer system resources
The computer network can enable transmission between hosts through the network, thereby realizing resource sharing. Moreover, with the development of network technology, resource sharing has become faster and the types of information have become more diverse.
6. Ability to perform distributed processing
Load balancing is a major feature of the network. In computer network technology, all information must be transmitted to the server before it can be processed. In some large websites, due to the large number of visits, the load on the server is also large. In this case, the website can place servers in different regions, so that the load of the server can be shared and the load balancing of each server can be achieved. At the same time, users can also save a lot of unnecessary trouble.
7. Comprehensive information service
The network can not only provide all kinds of information that people need, but also the intelligence of network technology makes the application scope of network technology wider and wider. For example: online shopping, online meetings, etc.
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