How to protect the CMOS data with VXD technology is discussed in this paper.

探讨了如何用VXD技术来加强对CMOS数据的保护。

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Whether to use standard O/S services, or put some code into the kernel (e. g. in a custom driver, kernel module, or VxD)

是否使用标准的操作系统服务，还是把一些代码放入内核中（如自定义驱动，内核模块。

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The difficulties of the whole system design are the design of the pit judgment arithmetic, the writing of the HY6070 VXD, the design and operation about the database.

所以整个系统设计的难点在于：缺陷判定算法的设计；hy6070虚拟驱动程序的编写；数据库的设计和操作。

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