一、引言 在DOS系统下，在计算机应用培训中因培训要求不同， 对软件的要求也不同，由于学员的误操作，存放在硬盘上的软件和重要数据容 易被非法删除或受到损坏。对此，笔者通过对硬盘管理的深入分析和实践，总结出了在硬盘上备份、保护重要数据和软件的一种新的行之 有效的方法：建立多个PRI DOS 分区， 不同的培训要求使用不同的PRI DOS分区，在使用时同时只有一个PRI DOS 分区可供使用， 其余 PRI DOS分区均被隐含。-an Introduction DOS system, the computer application training due to different training requirements, the requirements of the software is different, because the participants Misoperation, stored on the hard drive software, and important data easily have been illegally removed or damaged. This writer drives through the management of an in-depth analysis and practice, summed up a hard drive backup, protection of important data and software in a new effective method : to create a number of PRI DOS partition, different training requirements using different PRI DOS partition, in the use of only one at the same time PRI DOS partition is available, the remaining PRI DOS partition were implied.