计算机数据通信原理
Data communications in accordance with certain agreements, use of data transmission technology to transfer data between two terminals as a means of communication of information and communication business. It can achieve the computer and the computer, the computer and terminals, terminal and transfer data between terminals. It is following the telegraph and telephone services after the third largest communications business.Data communication is the communication technology and computer technology combined generated a new means of communication. To transfer information between the two Queensland must have a transmission channel, according to the different transmission media have wired data communications and wireless data communications sub-Kun. But they are all through the transmission channel will link up with computer data terminal, Ershi not Queensland location data terminal to achieve the same hardware and software and information resources sharing.
Keywords: Terminal Transmission medium Information resource