為什麼作業系統有關閉選項？

我們大多數人都使用作業系統內建的“關機功能”來關閉電腦，但如果你考慮改用電腦的電源開關呢？你使用哪種方法真的很重要嗎？或者如果你使用電源開關會導致問題嗎？今天的超級使用者問答帖子對一位好奇的讀者的問題給出了一些答案。...

我們大多數人都使用作業系統內建的“關機功能”來關閉電腦，但如果你考慮改用電腦的電源開關呢？你使用哪種方法真的很重要嗎？或者如果你使用電源開關會導致問題嗎？今天的超級使用者問答帖子對一位好奇的讀者的問題給出了一些答案。

今天的問答環節是由SuperUser提供的，SuperUser是Stack Exchange的一個分支，是一個由社群驅動的問答網站分組。

問題

超級使用者讀者iamjuliancosta想知道為什麼作業系統有關閉選項：

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.

為什麼作業系統有關閉選項？

答案

超級使用者貢獻者DrZoo為我們提供了答案：

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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