| 摘要 |
<p>A credit card-sized card having a rotating magnetic memory (5) therein is disclosed. The card is provided using a laminated structure in which a stainless steel (2,8), plastic sandwich (6) structure is employed. An opening (20) in the plastic layer provides space for the rotating magnetic disk. Data is written to or read from the disk by positioning heads from an external system into openings (12,14) in the external surface of the card. When the card is not engaged in a reader, a shutter (9,10) covers the openings. <IMAGE></p> |
