Can we really emulate a mainframe operating system and all its components in a PC?

我们真的能够在PC中模拟大型机操作系统及其所有组件吗？

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If you want a network, you need to emulate a network chip well enough for the operating system to run on it.

如果需要网络，那么还需要很好地模拟网络芯片，以使得操作系统可以在这个芯片上运行。

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QEMU is a platform virtualization application that allows you to emulate an entire computer (processors and associated peripherals) for purposes of virtualizing another operating system on it.

QEMU 是一个平台虚拟化应用程序，让您能够仿真完整的计算机（处理器和相关的外部设备），用于在其上虚拟化另一种操作系统。

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The first organ that the system has been used to emulate is the uterus, because keyhole surgery is widely employed to deal with ectopic pregnancies (those where the fetus develops in the fallopian tubes leading into the womb, rather than in the womb itself).

ECONOMIST: What the surgeon saw . . .

Yeah, it doesn't emulate a full surround sound system altogether that well -- the clue's in the "virtual" -- but it looks pretty good and is definitely compact, which is sort of the point with these kinds of devices.

ENGADGET: Philips' CES booth tour

Hillary Clinton would rather emulate a broken Canadian health care system than look to Perdue Farms in her old adopted state of Arkansas.

FORBES: How To Contain Health Care Costs