如何使用磁卡电话刘涛磁卡是一种标识卡，也就是在方形圆角的片状ＰＶ（或ＰＶＣＡ材料上面，粘一条磁性带或涂布一定面积的磁性材料，用来记录作为标识信息的数据信号，并可方便读取及写人数据的倩息传递媒体．通常这种媒体上面储存一定的金额，是一种专用的有价票证。磁... How to use the magnetic phone Liu Tao magnetic card is a kind of identification card, that is, in the square fillet of sheet PV (or PVCA material above, stick a magnetic tape or coated with a certain area of ​​magnetic material used to record data signals as identification information , And can be easily read and write the data transmission of information. Usually the above media to store a certain amount of money, is a dedicated document of value ...