The main services provided by the Internet
Internet service is a global internet network that provides users with Internet services, access to the Internet, and obtain the information they need. The main services provided by the Internet are Telnet, Email, WWW, BBS, FTP, etc. Five types of services will be explained below.
Telnet remote login service
The Internet provides remote login services. It is a terminal emulation protocol that provides remote connection services. It is also an official standard of the Internet. If a computer is located at the location of a computer and log in to another computer through a TCP connection, then this computer becomes the computer you log in to. One of the terminals, through some instructions, makes the terminal computer interact with the remotely connected computer, and issues commands on the terminal computer to make the remote computer execute the instruction operation
E-mail email service
Users can interact with other users through the Internet, transfer emails, and facilitate user communication. This breaks the traditional email communication method. This method is more concise and fast, and there is no need to worry about the loss of emails.
WWW hypertext link
WWW English name World Wide Web, Chinese name World Wide Web, standardizes W3C standards, solves the problem of information transmission on the Internet, based on the server side through the hypertext markup language to organize information into hypertext, users can conveniently use the connection from the Internet One site jumps to another site to obtain corresponding information, so that users can easily browse web pages and stored information on the Internet. Simply put, the resources of each site are described in hypermedia language. Hypermedia is actually hypertext. Combination with multimedia. Link web pages together through connections so that they can jump to and visit each other.
BBS electronic bulletin board
The electronic bulletin board system is a well-known information service system. It provides a wide range of information service topics, which is equivalent to an electronic bulletin board. Users can subscribe, conduct discussions, exchange ideas, and seek help, just like various forums commonly used in real life. .
FTP file transfer
Users can transfer files between computers and the type of files is not limited. When transferring files, you must log in to the other party's computer first, and then you can find and transfer files after logging in. Generally, there are two situations. One is that the user name and password of the other party's computer are required to log in, perform operations, and transfer files; the other is anonymous, where the user uses the public information and resources published by the resource website through the Internet.