| 摘要 |
<p>PURPOSE:To obtain a processor capable of executing highly developed data protection by simple operation. CONSTITUTION:A liquid crystal display device 5 is laminated on the lower layer of a pressure sensitive tablet 6 having translucency, a previously determined picture is displayed on the device 5 and a point on the picture is inputted from the tablet 6. The coordinates of inputted points on the picture are stored in a RAM 3 in the input order, and only when all coordinates coincident with the contents stored in the RAM 3 are inputted in the same order of the stored contents of the RAM 3, specified data are allowed to be read out/written.</p> |
