| 摘要 |
PURPOSE:To execute a data processing with high reliability by providing a first auxiliary storage means, and a second auxiliary storage means, in a host device, and a terminal equipment, respectively. CONSTITUTION:In an initial state, a first auxiliary storage means 17 and a second auxiliary storage means 27, 37 are set so that read-out can be executed and re-write is inhibited, respectively. Also, in a mode for executing re-write to a shared file 16, on a host device side, when read-out is executed, a first auxiliary storage means 17 related to its shared file 16 is rewritten to read-out inhibition, and on the other hand, on a terminal equipment side, when its contents are stored in its file storage means, second auxiliary storage means 27, 37 are rewritten so that re-write can be executed. Also, in a mode in which re-write to the shared file 16 is not executed, rewriting is not executed, and the contents of a first auxiliary storage means 17 are maintained as they are. |
