The Internet is a huge Internet system that can provide a variety of services. Here we will briefly introduce two typical applications of the Internet: www and e-mail.
1、 WWW Service
WWW (World Wide Web) is transliterated into "the World Wide Web". The original English meaning of "Web" can be translated into "spider web". WWW is similar to a worldwide spider web. WWW is an information dissemination and processing technology announced by the European Center for Comparative Physics (CERN) in 1991. It is a distributed multimedia hypertext system, called "distributed" It means that it can organically combine the information of computers connected to the Internet anywhere in the world, and computers in various places can establish their own WWW servers to provide users on the Internet with information with pictures and texts. This function of providing users with text, images, sounds and other forms of information is the feature of multimedia. The so-called "hypertext" means that its information organization form is not simply arranged in order, but a complex network cross indexing method in which the pointer links information from different schools.
WWW is the most popular and popular information retrieval service system on the Internet. All services in WWW are processed in the client/server mode. The client here is a program that needs some services, and the server is a program that provides some services. WWW organically weaves the relevant data information of different websites on the Internet all over the world, and provides a friendly query interface through the browser: users only need to put forward query requirements, and do not need to care about where to query and how to query, which are automatically completed by WWW. By using a browser Website Design People who can quickly become experts in using the Internet.
2、 E-mail
E-mail is a representative application of the Internet. It started from the early development of RPAnet, and is earlier than the most widely used application of the Internet - www. The use of e-mail dates back to the 1970s. In 1972, a researcher of ARPAnet wrote a right order for sending and receiving information through this network; In 1976, the Queen of England sent an email message through ARPunct, which marked the birth of email. Today, in developed countries, e-mail has surpassed telephone, traditional letter and fax in the most number, and become the most commonly used means of business communication.
E-mail is not only an early application of the Internet, but also a reason to attract many people to the Internet. E-mail can transfer letters from one place to another in just a few seconds. An attractive advantage of e-mail is that the transmitted letter can be accompanied by documents, pictures, movies, spreadsheets and other important information. These attachments are often an important part of a letter. The attachments of the inter enterprise e-mail may be invoices, the latest product catalog, and the compressed www page that introduces the online sales products of the enterprise.
