The published ANSI standard calls for a threetrack format,with recording done seriallybybit on each track. Using a highdensity magnetic stripe as its memory, powered by the reading unit or an internal battery, it could acquire a variety of data from remote sources, identify itself upon request, and encrypt its own data for transmission.; 一種公布的ANSI要求三磁道格式的標(biāo)準(zhǔn),每個(gè)磁道串行逐位進(jìn)行記錄。由讀設(shè)備供電或內(nèi)部電池供電,能從遠(yuǎn)程資源中獲得各種數(shù)據(jù),根據(jù)請(qǐng) 求識(shí)別自己,可將自己的數(shù)據(jù)加密再發(fā)送。