1. Publication of scientific research results

Traditionally, people think that the fastest publication of scientific research results is serial publications, but this view should be changed at present. A large number of preprint servers have been established on the Internet, and many scientific research institutions, academic organizations, experts and scholars all over the world first publish their scientific research results on the Internet, which is not only for the world's peers to enjoy, but also to show that they are the owners of the results, thus greatly shortening the meeting time between scientific research results and the public.

2. Telemedicine

Some time ago, the media reported that a female student in a university had thallium poisoning, and doctors in China diagnosed it by combining medical information seeking help through the Internet. Now doctors can observe patients on computer screens, watch medical pictures to diagnose their illness and use the Internet to guide operations thousands of miles away.

3. Daily life

As a large number of merchants have joined the Internet, people can learn about advertising information and travel information through the Internet, and complete shopping, booking tickets and booking rooms.

4. Business activities

The purpose of p>Internet is to provide people with an academic resource network, but at present, there are more and more commercial applications, and it has become an excellent electronic commercial media, from IBM, AT& T and other big companies to newly-built small companies have entered the Internet. In 1992, a group of electronic product manufacturers, such as Intel, HP, IBM and Apple, established a large Internet market called Commercenet, which integrated electronic product marketing and service, and laid the foundation for them to develop a brand-new business operation mode, that is, directly dealing with suppliers, users and tens of millions of potential users. They send company information and product descriptions to users, and users can access some databases of the company and even try out computers sold by the company.

V. Problems of the Internet

Although the Internet has such a large resource pool and provides such detailed services, we should be soberly aware that it also has a lot of negative effects or problems.

1. Security issues

At that time, the designers of ARPAnet only wanted to build a network that can resist nuclear attacks (that is, a network that can still work normally after being partially damaged), and did not consider that it should be enjoyed by all mankind. Therefore, the Internet has always lacked security protection measures, leaving the security issues to users to solve themselves. At present, the so-called FireWall research has been carried out in developed countries to form a protective layer between internal information and external resources.

2. Information pollution

People's ideal Internet should be that everyone should be equal, help each other and enjoy information * * *. However, the current situation is that the ideology on the Internet is diversified, the business competition is fierce, and the information transmission is chaotic, so there are a lot of false information (also known as "black" information) and "yellow" information.

The so-called "black" information is the false information that people deliberately publish, such as sending a "deceptive email" to a user saying that he or she has won a certain prize, or being hired as a senior manager by a big company. At present, the false information has reached the serious level of forging aircraft performance parameters and causing aircraft accidents.

The so-called "pornographic" information is also pornographic information. Some people publish pornographic information on the Internet under the guise of cultural freedom, and even have pornographic performances, which are also called "computer prostitutes"; On the other hand, it sends sexual harassment emails to users, which greatly interferes with the normal communication and work of users, especially female users.

3. Protection of intellectual property rights and cultural heritage

With the opening of the p>Internet, non-profit organizations such as the education sector can use patents or documents through the network, but other profit-making organizations or individuals can also profit from it. What follows is the protection of intellectual property rights. In addition, it is impossible to preserve all the information published through the network, and if corresponding measures are not taken, it may cause the loss of cultural heritage.

4. Capacity problem

On September 5, 1995, from 11: am to 2: pm, a big "browse out" of the Internet made the performance of the entire American Internet drop to the extreme, and it took 4 minutes to successfully connect to the Web site. Experts believe that this accident is likely to be a precursor to more "slowdown", and the Internet must use more powerful routers or switches to support the rapid growth of users and traffic. Regional networks must also cooperate with each other as much as possible to make their networks run in a balanced way.

5. Cost

For a long time, the cost of using the Internet has been very low. Due to the sharp increase of commercial users and non-American users, it has become increasingly difficult for the American Science Foundation to bear all the costs. Therefore, the American Science Foundation announced that from September 14, 1995, the cost of tracking Internet users' addresses will no longer be borne entirely by the Foundation, but will also be shared by commercial networks, companies and non-profit organizations connected to the network.