可視數(shù)據(jù)
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. 英國(guó)可視數(shù)據(jù)系統(tǒng)使用了能同電話連接的電視機(jī)和象袖珍計(jì)算器一樣的遙控開關(guān)盒。
