| 摘要 |
<p>PURPOSE: To provide a data storage device which is easy to use by performing a different process from other items for a predetermined item as to a data storage device which stores item data corresponding to respective plural items. CONSTITUTION: A RAM 15 is provided with an area R0 where item data on names are stored, an area R1 where item data on telephone numbers are stored, an area R2 where item data on birthdays are stored, an area R3 where item data on memorandums are stored, and an area R4 where item data on portraits are stored, and data can not be set in items of a telephone number, a birthday, a memorandum, and a portrait unless data is set in the area R0 for the item data on the names. When the data of the item of a name are cleared while the data are set, data of other items are also cleared to simplify switch operation.</p> |
