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Graphics Interchange Format  |  1996-07-01  |  44.7 KB  |  443x325  |  4-bit (16 colors)
   ocr: (a) (b) Transaction Type Card OK Ask. Display Balance Card to Display Query Bank Reader a Request for Balance for, PIN - Reads Card - - Card Enter User € - - Transaction Type 9 Card. not OK Ask Display to Display a Request for Amount Figure 9: (a) Response diagram for Card Reader Reads Card; (b) response diagram for Card User Enters Transaction Type.