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System starting system

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专利汇可以提供System starting system专利检索,专利查询,专利分析的服务。并且PURPOSE: To prevent a program from being out of order, by writing a prescribed identification mark in a sector of the bootstrap loader section of a system disk and judging the presence of absence of the identification mark at the time of system starting.
CONSTITUTION: A sector of a bootstrap section is designated by a floppy disk controlling program written in the ROM of a microcomputer and the presence or absence of an identification mark in the sector is judged. When the identification mark exists, a system program is taken-in in accordance with its bootstrap loader and the system is started. When the indentification mark does not exist as in the case where another floppy disk is wrongly inserted into a disk driving device 3, error processing to its effect is performed and starting of the system is inhibited.
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