非话新业务种种文阁可视国文可视图文是计算机、电话、电视技术三者结合应用的一种新型通信业务。可视图文系统通常是由信息处理中心、数据库、电话网和用户终端等设备组成的。可视图文分为交互型可视图文（ｖｉｄｅｏｔｅｘ）和广播型可视图文（ｔｅｌｔｅｘｔ）两种类型... Uneven New Business All kinds of Wenge visual Visual Chinese graphic is a new type of communication service that combines computer, telephone and TV technologies. Videotex systems are typically made up of information processing centers, databases, telephone networks and user terminals. Visual graphics are divided into interactive videotex and broadcast videotext (teltext) two types ...