| 摘要 |
PROBLEM TO BE SOLVED: To make a back-up program of a host computer used continuously even when a memory map of the memory of an equipment is changed, and to conceal a stored address of a back-up data to be precluded from being put to an illicit use. SOLUTION: IDs corresponding to the back-up data 601-605 stored in the memory 600 of the equipment 100 are selected in host devices 401, 402, and data selection information is prepared to be transmitted to the equipment, the address of the memory stored with the back-up data corresponding to the ID is deduced, the prescribed back-up data are read out from the memory based on the deduced address when uploaded, to be transmitted to the host devices and to be stored in storage parts, the back-up data corresponding to the ID are read out from the storage parts in the host devices, when downloaded, to be transmitted to the equipment, and written in the memory based on the deduced address. |
