例如，在驱动程序与硬件进行通信时，它操纵寄存器以便请求一些所需的设备操作。

For example, when a driver communicates with hardware, it manipulates registers to request some desired operation of the device.

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物理硬盘可以完全不同—例如，尽管一个IDE驱动器被模拟为客户操作系统，物理硬件平台可以使用一个串口ata (SATA)驱动器。

The physical hardware can differ greatly-for example, while an IDE drive is emulated to the guest operating systems, the physical hardware platform can use a serial ATA (SATA) drive.

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诸如MS - DOS之类的操作系统可以加载其他设备驱动程序，例如CD - ROM驱动器，但是需要所有硬件驱动程序在启动时就已经加载上来了。

An operating system such as MS-DOS can load additional device drivers, such as CD-ROM drivers, but needs all of the hardware drivers already loaded at startup.

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