| 摘要 |
<p>PURPOSE:To increase the storage capacity of data which can be utilized irrespective of an IC card to be installed, and also, to hold the interchangeability to the IC card of a conventional type in this case by extending an area of a RAM installed to a main body, in an electronic notebook, etc., used by installing the IC card. CONSTITUTION:This system is constituted so that an extended RAM 3 of a main body is mounted to an IC card memory space, this extended RAM 3 and a RAM 6 of an IC card 10 can be switched and accessed, and also, this extended RAM 3 can be accessed by accessing an exclusive RAM area of the main body, as well.</p> |
