The traditional main service functions of the Internet include

1. Remote login service Telnet (Remote Login) remote login is one of the basic information services provided by the Internet. It is a terminal emulation protocol that provides remote connection services.

It allows your computer to log into another computer on the Internet.

Your computer becomes a terminal for the computer you log in to, and you can use the resources on that computer, such as printers and disk devices.

Telnet provides a large number of commands that can be used to establish an interactive dialogue between the terminal and the remote host, allowing local users to execute commands from the remote host.

2. The file transfer service FTPFTP allows users to transfer files between computers, and the file type is not limited. It can be a text file, a binary executable file, a sound file, an image file, a data compression file, etc.

FTP is a real-time online service. Before working, you must first log in to the other party's computer. Only after logging in can you perform file search and file transfer related operations.

Ordinary FTP services require the corresponding user name and password when logging in. When the user does not know the user name and password of the other party's computer, the FTP service cannot be used.

To this end, some information service agencies provide an "anonymous FTP service" in order to facilitate Internet users to use their publicly released information through the network.

3. Email service E-mail (Electronic Mail) Email is like a letter from the post office, but its difference is that email is a fast, simple, efficient, and cheap modern way to communicate with other users through the Internet.

means of communication.

And it has many advantages. For example, E-mail is much faster than sending letters through traditional post offices. At the same time, without deliberate damage by hackers, the loss and damage rate of letters is also very small.

4. World Wide Web WWW (World Wide Web) The Chinese translation of WWW (World Wide Web) is World Wide Web or World Wide Web.

WWW was created to solve the problem of information transmission on the Internet. Before the creation of WWW, almost all information was released through E-mail, FTP, Telnet, etc.

But because information on the Internet is scattered all over the place, it's impossible to search for the information unless you know where it is.

It uses hypertext and multimedia technology to link different documents through keywords, providing a cross-query method.