数据通信

说明：   数据通信是通信技术和计算机技术相结合而产生的一种新的通信方式。要在两地间传输信息必须有传输信道，根据传输媒体的不同，有有线数据通信与无线数据通信之分。但它们都是通过传输信道将数据终端与计算机联结起来，而使不同地点的数据终端实现软、硬件和信息资源的共享。
(communications data communications and computer technologies are combined to produce a new form of communication. In between two transmission of information must have a transmission channel, according to the different transmission media, cable and wireless data communications data communications breakdown. But they are all through the channel of transmission of data and computer terminals linked together, so that different locations of the data terminal to achieve soft, hardware and the sharing of information resources.)