| 摘要 |
<p>PURPOSE:To block the card installation port of a device main body without the need of a different cover member in the installed state of the device main body on the I/O card. CONSTITUTION:The I/O card is that of an IC MODEM card and the like which is inserted into the card installation port 2 formed on the device main body 1, which is used and which is provided with an external connection part 3. The external connection part 3 is arranged at the same position as the exchange port 6 of a data preservation battery 5 in the IC memory card 4.</p> |
