| 摘要 |
PURPOSE:To shorten starting time by mounting a ROM storing a loader, a RAM to store temporarily a load program, and a non-volatile memory to store semipermanently the loaded program, and storing the revision of the program of terminal equipment on an external storing medium. CONSTITUTION:Since an EEPROM 6 can be rewritten electrically, and in addition, it is the non-volatile memory, the program of the terminal equipment loaded in a definite way and stored never disappears. Before the program of the terminal equipment is loaded from the external storing medium 8, the revision of the program of the terminal equipment is loaded from the external storing medium 8, and since only when the revision is updated, the program of the terminal equipment is loaded, it is unnecessary to load the program of the terminal equipment every time. Thus, since the update of the revision is detected automatically, the operation of a keyboard is not required for loading. Thus, the time from the switching-on of the power of a video data terminal to the start of the operation of the operator can be shortened.
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