| 摘要 |
PURPOSE:To make it possible to make system generation without using outside memory device, by using corresponding variables in unvolatile memory when modifying a system program and when there are no corresponding variables in outside memory. CONSTITUTION:At the time of system generation, the system program seeks for specific files according to the order specified in advance, and when the corresponding variable does not exist in an outside memory device 30 and displacable memory 40, it can use corresponding value in an unvolatile memory 20. The unvolatile memory 20 is a CMOS memory backed up by battery, and it contains values corresponding with the variables used for each system generation. Therefore even if there is no specific file in the outside memory 30, nor displacable media is not attached in the displacable memory 40, even if the device 40 itself does not exist at all, system which suits general processing can be generated. |
