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术语 viewdata
释义 viewdata
可视数据;[可视资料]
1. A public name for a type of interactive text service originally developed by the British Post Office. The public name has come to represent the generic name for a twoway TV product, even though there are many competing variations. The basic British viewdata system uses an adapted TV set with a telephone connection and a remote control switch box that looks like a pocket calculator. Viewers press numbers to call for pages of travel information, business information, retail advertising, or constantly updated news. A central computer is signalled through the telephone and responds by finding the appropriate page and flashing it on the viewer's screen.
最先由英国邮电部开发的一种交互式文本服务的通用名。虽然有许多竞争产品,这个通 用名字已经变成表示这类双向电视产品的名字。英国可视数据系统使用了能同电话连接的电 视机和象袖珍计算器一样的遥控开关盒。收看者按数字键可调出旅游信息、商业信息、零售 广告或最新新闻等页面,通过电话可呼叫一个中央计算机,被呼叫的计算机做出响应,选择 适当的页面并把它显示在收看者的屏幕上。
2. Former name for videotex.videotex的原用名。
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