一、什么是数据广播?数据广播是近十年来蓬勃发展起来的一种新型信息服务业务.什么是“广播”?在日常的概念中多是指一对多的单方向的信息传递,如无线电台的信息传递、电视台的节目播出等.虽然广播并不一定单指无线(如有线广播),但是多数情况下,我们总把广播与无线的、单方向的一对多的通信方式划等号. First, what is data broadcasting? Data broadcasting is a new type of information service that has flourished in the past decade. What is “broadcasting?” In everyday concepts, it refers to one-to-many one-way information transmission, such as radio Broadcasting of stations, broadcasting of television stations, etc. Although broadcasting does not necessarily mean wireless only (such as cablecasting), in most cases we always divide broadcasting and wireless and one-way one-to-many correspondences number.