嵌入式软件系统一般由实时操作系统、应用层软件及硬件驱动软件等部分构成。

In general, embedded software system consists of realtime operating system, application software, hardware driver and so on.

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如今，驱动数据中心的两大概念 — 经济和环保 — 使服务器虚拟化成为 IT 世界的一个热门话题。 许多硬件和软件供应商都提供了解决方案。

Thanks to two concepts driving the data center today—economy and green computing—server virtualization is a hot topic in the IT world and a lot of hardware and software vendors are offering solutions.

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在来宾操作系统的驱动程序窥探内存和硬件寄存器时，软件存在于下面来仿真设备（参见图 2）。

When the guest operating system's driver peeks and pokes at the memory and hardware registers, software exists underneath to emulate the device (see Figure 2).

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And if you've ever heard the word driver software that you install in your computer so that your computer, your operating system, Windows or Mac OS, knows how to talk to that piece of hardware, it's that driver software that then empowers the operating systems to send those commands as well, up, the data is laid out on the disk.

并且如果你听说过安装到,电脑中的驱动软件这个词的话，你的操作系统，比如Windows或者是苹果操作系统，通过这个驱动软件我们的电脑，才能知道如何与这个硬件进行通信,正是因为这个驱动软件，操作系统才能根据数据，左右移动的指令来读取磁盘里的数据。

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