我们大多数人都使用操作系统内置的“关机功能”来关闭电脑，但如果你考虑改用电脑的电源开关呢？你使用哪种方法真的很重要吗？或者如果你使用电源开关会导致问题吗？今天的超级用户问答帖子对一位好奇的读者的问题给出了一些答案。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者iamjuliancosta想知道为什么操作系统有关闭选项：

I want to know why operating systems require us to shut them down using a built-in option. Why not just shut everything down using the computer’s mechanical hardware switch? Will I damage the hardware or corrupt my data if I c***tantly shut a computer down without using the operating system’s built-in option?

To clarify, I want to use an Intel Compute Stick as a media player (connected to a projector) and control it using an electrical switch. The computer will only be used to play videos and will not have additional programs installed on it, nor will it have Internet access.

为什么操作系统有关闭选项？

答案

超级用户贡献者DrZoo为我们提供了答案：

It depends on what is happening with the operating system at the time you chose to suddenly cut the power. If the system is busy writing important data and you cut the power, you could potentially damage the data or corrupt the operating system. A lot of things are going on that you do not really see. You mainly need to worry about something software related breaking when you do a hard reset. As far as the hardware is concerned, you should not encounter any problems.

You do not want to make a habit of bypassing the operating system’s built-in shut down method by cutting the power. It would just be a matter of time until something becomes corrupt and causes you to have to reinstall the operating system.

In some cases, a hard reset is the only choice you have. If your computer locks up and you cannot get it to do anything at all, what other option is there?

The origin of your screenshot is from Windows 9X systems where the message was displayed when Windows had successfully shut down to MS-DOS, but was not configured to return to the prompt (COMMAND.COM) again. On systems with proper ACPI support and an ATX power supply, the computer in question may power down instead.

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