The Internet is a huge Internet system, Website Design Its resources are very rich, including natural science, social science, technical science, agriculture, meteorology, medicine, military and other fields and professions, as well as social, economic, educational and cultural organizations and social public services The main services on the Internet are as follows: e-mail (F. mail), remote login (elnet), file transfer (FTP) WV browsing and so on. Here is a brief introduction to the readers.
(1) Telnet Telnet is a tool of the Internet. It is used to connect a computer with another computer as a remote terminal. For example, a 286 computer may take several days to calculate a complex mathematical problem, while a remote Pentium II 266 computer may only take a few minutes to calculate. How to ask the remote computer for help in local ICI and computer? This requires Telnet to complete remote food recording. A common application of remote login operation is to access any logged in user in the network. Some systems support Internet users to establish personal accounts on their systems. For example, many libraries have replaced traditional card directories with online systems. As long as the library's computer is connected to the Internet, those directories can be queried through remote access. Compared with providing dial-up access to online information services, remote access using the Internet can save costs compared with long-distance telephone or packet service connections that are billed by time
(2) File Transfer (FTP). Throughout the Internet, many computers have information, images, software or other files of interest to you. Before you can use the file in it, you must transfer it to your computer. To copy a file from a remote computer, you need to use the Internet's File Transfer Protocol (FTP) tool. As a public service of the Internet, many users can obtain documents, software or other files from the FTP server through the anonymous login method. If you have an account on the remote computer, you can use the account to access the remote computer even if the remote FTP server does not support anonymous login, so as to transfer files between two computers.
(3) Internet news. The Internet provides 7 free forums where you can talk and discuss any suggestions and opinions in any industry around the world. This is Internet news. The topics discussed in the Internet newsgroups cover almost all conceivable aspects, from molecular physics, universal promise to home brewing and how to repair bicycles. There are more than 15000 such newsgroups on the Internet, and new newsgroups have joined. In any newsgroup, participants can express their opinions on other people's arguments or propose new topics. This online communication with anyone in the world at any time is impossible for any other media.
(4) Search engine. The search engine is a "server" on the Internet. Its main task is to actively search the information in other "Ir service parameters in the Internet and automatically index them, and store the index content in a large database that can be queried. Users can use the classification catalog and query functions provided by the search engine to find the information they need. Users must know the host name of the search engine site before using the search engine. Users can access the home page of the search engine site through this host name. Using search engines, users only need to know what they are looking for or what kind of information they are looking for. After the user tells the search engine the keyword of the information he wants to find, the search engine will return the URI containing the keyword information to the user, and provide a link to the site. The user can obtain the required information through these links
(5) E-mail. E-mail service, also known as E-mail service, is one of the most frequently used services on the Internet at present. It provides a fast and affordable modern means of communication for Internet users to send and receive messages. It plays an important role in e-commerce and international exchanges. For example, parties to e-commerce transactions can use e-mail to deliver contracts, orders and other documents. In traditional communication, the delivery that needs several days can be completed in a few minutes or even seconds by e-mail system. Nowadays, e-mail system can not only transmit text information in various formats, but also transmit images, sounds, videos and other information, making e-mail one of the important means of multimedia information transmission.
