1992 年 29 巻 3 号 p. 296-303
This document provides general information on the ‘magnetic card’, which is most popular and conventional. The ‘magnetic card’ is classified into; plastic card, applied to credit and banking applications. PET card, applied to pre-paid applications e. x. Japanese telephone card. This document describes the physical structure and manufacturing technology of each card. And also illustrates the function of them with some typical application systems.