摘要
数字数据网(DDN)是利用数字信道来传输数据信号的数字传输网。DDN可向用户提供图象通信、数字电话通信、数据广播通信、计算机局域网互联、计算机远程通信等多种服务。我国发展DDN既有必要性又有可能性。
Digital Data Network(DDN) is a data network designed to transmit data on digita! channels. It can provide users with a variety of services such as video communications, digital telephone communications, data broadcasting communications, LAN networking, and computer communications. It is both necessary and possible to develop DON in China.
出处
《世界电信》
1994年第1期20-22,共3页
World Telecommunications
关键词
数字数据网
通信网
Digital communication networks Data communication networks Computer communications
