您应该每晚还是在不使用设备时关闭设备？它有什么不同吗？答案是：视情况而定。
外面有两种人。那些认为经常打开和关闭设备的人应该避免，而那些认为一直打开设备会损坏设备的人。
混乱是由我们曾经在使用那些带有CRT显示器的旧 PC 时获得的信息造成的。从那时起，很多事情都发生了变化。但是，通常情况下，关闭计算机或智能手机不会对您造成损害。离开设备也不会造成明显的损坏。
在本文中，我们将解释何时以及为何应关闭设备。我们还将探讨您希望保持设备运行的所有原因。没有简单的是或否的答案，尤其是当 iPhone 和 PC 之间存在重要差异时。
永远在线设备的问题
PC、笔记本电脑和移动设备都有主板(motherboards)、处理器(processors)和RAM，它们的使用寿命有限。当这些组件通电时，它们会升温，并且随着时间的推移，温度会导致磨损。带有机械组件的硬件也是如此，例如打印机、扫描仪和硬盘驱动器。尽管如此(Nonetheless)，技术发展如此之快，以至于您更有可能在看到任何相关的热损坏之前更换您的硬件。
外部危险是另一回事。电源(Power)浪涌和随机电压波动会对任何计算机造成很大损害。您的电涌保护器(surge protector)和安全功能只能起到抵御雷击的作用。
您需要考虑这些可能的风险，并将它们与任何优势进行权衡。例如，如果您不经常关闭 PC，则可以开始将其用作服务器或下载大型数据文件。另一方面，当您不积极使用它时，将其置于电涌中的时间会更长，而且您的电费会显着增加。
那么什么最适合您的设备？
你应该每晚关掉你的电脑吗？(Should you shut down your PC every night?)
我们建议至少偶尔关闭您的 PC。在大多数情况下，您的决定取决于您的情况。如果您需要运行下载或渲染等耗时的过程，您可以全天候 24/7 离开您的 PC。如果您正在运行服务器，情况也是如此。
你应该在晚上关闭手机吗？(Should you shut down your phone at night?)
关闭手机和移动设备没有任何问题，但没有必要。让它们过夜通常是安全的。您的移动设备不会经常插入，因此您可能遇到的故障类型较少。也就是说，不时关闭它们有几个好处。
何时关闭您的 PC 或 Mac
首先，让我们澄清一些技术神话。
- 电源循环或打开和关闭计算机不会随着时间的推移造成任何损坏。有些人让他们的计算机不停地工作，他们认为他们正在保护硬件的生命周期。这不是真的。现代(Modern)电子元件的额定功率周期为数十万次，并且它们的使用寿命远不止于此。在您达到这些限制之前，您的零件将最终进入某人的回收设施。
- 打开和关闭计算机不会比睡眠模式消耗更多电量。
既然我们已经解决了这个问题，让我们来看看您应该关闭计算机的主要原因。
降低能源成本(Lower Energy Costs)
让电脑开机一夜会消耗更多电量。即使您的CPU和GPU无法在任何接近峰值性能的地方工作，计算机仍然会消耗大量能量，这些能量在整个一个月的过程中会变得很明显。节省一些钱并在您上床睡觉时关闭您的 PC，或者至少让它进入睡眠或休眠模式。
更少的损坏和更少的故障风险(Less Damage and Fewer Failure Risks)
电力会产生热量，而热量是有害的。通过关闭计算机，您的硬件受到的磨损更少。
如果您还使用旋转硬盘驱动器而不是固态驱动器，则其机械组件会随着时间的推移而磨损。
运行时间越长，磨损越快。也就是说，如果您仅使用SSD(SSDs)，则不会遇到此问题。SSD没有任何移动部件，只有写入才能缩短其使用寿命。
最后，您需要考虑可能的电涌。
如果您的计算机 24/7 全天候运行，则发生电涌的可能性更高。虽然它与硬件本身无关。例如，雷暴期间有很高的浪涌风险。
减少维护(Less Maintenance)
电脑会积聚灰尘，必须定期清理。您的 PC 或Mac运行时间越长，它收集的灰尘就越多。必须更频繁地清洁 24/7 的计算机。
重置操作系统并提高响应能力(Reset the OS and Improve Responsiveness)
如果不是每天晚上，您应该每周至少关闭计算机几次。通过清除随时间堆积的所有进程和后台应用程序，让您的操作系统平稳运行。关机让您的操作系统重新开始，并清除各种小故障。
不方便？使用睡眠模式 (Inconvenient? Use Sleep Mode )
如果您觉得关闭 PC 不方便，请将其置于睡眠模式。
启动计算机需要时间，有时您只想从上次中断的地方恢复会话。幸运的是，您不需要整晚烧电和听嘈杂的风扇来做到这一点。这就是睡眠模式(sleep mode)的用途。这种省电模式几乎不消耗任何电量，让您几乎可以立即回到您的会话。使用它而不是让您的 PC 过夜。
何时关闭您的移动(Your Mobile) 设备(Devices)
您几乎不必关闭移动设备。如果您在晚上关闭手机，认为您正在增加电池的使用寿命，请停止。这是一个神话。无需关闭您的 iPhone、iPad 或Android设备。
关闭计算机可以节省电费、维护费用、磨损费用，并降低不停插入电源插座所带来的风险。移动设备是不同的，即使它们也有处理器和RAM。电池(Batteries)主要通过完全放电数百次而磨损。晚上关机也没有用。
移动(Mobile)设备也依赖闪存而不是机械驱动器，因此 24/7 全天候运行不会随着时间的推移造成任何损坏。
您应该关闭智能手机或平板电脑的唯一时间是当某些东西无法正常工作时。随着时间的推移会出现轻微的系统故障，并会减慢您的手机速度。(Minor)关机将重置系统并清除导致系统错误的所有进程和临时数据。
底线
您(Are)是否担心定期打开和关闭计算机？
不要这样。每天关闭它是安全的。
24/7 全天候让您的设备安全吗？
是的，有一两个警告。移动设备可以不间断地运行而不会出现问题。是否关闭它们并不重要。你不会损坏它们。您的计算机也是如此，除了您需要保护它免受外部风险（如断电和电涌）的影响。
也就是说，如果您晚上不使用您的设备做任何事情，您不妨将它们关闭或至少将它们切换到省电模式。此外，据安全研究人员称，关闭手机可以提高设备的安全性和隐私性。(increase the security and privacy)
Should You Shutdown Your PC, Laptop, or Phone Every Night?
Ѕhould you shut down your deviceѕ every night or whenever they’re not in uѕe? Does it make any difference? The answer is: it depеnds.
There are two types of people out there. Those who believe that frequently turning a device on and off should be avoided, and those who think leaving a device on all the time will damage it.
The confusion is caused by the information we once had when we were using those old PCs with CRT monitors. A lot of things have changed since then. However, in general, you won’t harm your computer or smartphone by turning it off. Leaving a device on also doesn’t cause noticeable damage.
In this article, we’ll explain when and why you should shut down your devices. We’ll also explore all the reasons you’d want to keep your devices running. There’s no simple yes or no answer especially when there are important differences between an iPhone and a PC.
The Problem with Always-On Devices
PCs, laptops, and mobile devices have motherboards, processors, and RAM, and they have a limited lifespan. When these components receive power, they heat up and the temperature causes wear and tear over time. The same goes for hardware with mechanical components, such as printers, scanners, and hard drives. Nonetheless, technology is evolving so fast that you’re more likely to replace your hardware before seeing any relevant heat damage.
External dangers are another story. Power surges and random voltage fluctuations can cause a lot of damage to any computer. Your surge protector and safety features can only do so much against a lightning strike.
You need to consider these possible risks and weigh them against any advantages. For example, if you don’t shut down your PC frequently, you can start using it as a server or for downloading large data files. On the other hand, you expose it to power surges for longer periods by leaving it on when you’re not actively using it and your electrical bill will be significantly higher.
So what’s best for your devices?
Should you shut down your PC every night?
We recommend shutting down your PC at least on occasion. For the most part, your decision depends on your situation. If you need to run a time-consuming process like downloading or rendering, you can leave your PC on 24/7. The same goes if you’re running a server.
Should you shut down your phone at night?
There’s nothing wrong with shutting down your phone and mobile devices, but it’s not necessary. It’s generally safe to leave them on overnight. Your mobile devices aren’t constantly plugged in, so there are fewer failure types you can encounter. That said, there are a couple of advantages to shutting them down every now and then.
When to Shutdown Your PC or Mac
First, let’s clear up some tech myths.
- Power cycling, or turning your computer on and off, doesn’t cause any damage over time. Some leave their computer on non-stop thinking they’re preserving the hardware’s lifetime. That’s not true. Modern electronic components are rated for hundreds of thousands of power cycles and they last way beyond that. Your parts will end up in someone’s recycling facility before you reach those limits.
- Turning your computer on and off doesn’t use more power than sleep mode.
Now that we got that out of the way, let’s take a look at the main reasons you should shut down your computer.
Lower Energy Costs
Leaving a computer on overnight will consume more power. Even if your CPU and GPU aren’t working anywhere near peak performance, computers still draw a significant amount of energy that becomes noticeable over the course of an entire month. Save some money and shut your PC down when you go to bed or at least let it go into sleep or hibernate mode.
Less Damage and Fewer Failure Risks
Power creates heat and heat is damaging. By shutting down your computer, your hardware suffers less wear and tear.
If you’re also using a spinning hard drive instead of a solid-state drive, its mechanical components will wear and tear over time.
The longer it runs, the faster it wears out. That said, if you’re using SSDs only, you won’t have this problem. An SSD doesn’t have any moving parts and its lifespan is shortened only with writes.
Finally, you need to consider possible power surges.
If your computer is running 24/7, there’s a higher chance of a power surge. It has nothing to do with the hardware itself though. For example, there’s a high risk of a surge during a thunderstorm.
Less Maintenance
Computers gather dust that has to be cleaned regularly. The longer your PC or Mac runs, the more dust it gathers. A computer that’s on 24/7 has to be cleaned a lot more often.
Reset the OS and Improve Responsiveness
You should shut down your computer at least a couple of times a week, if not every night. Keep your operating system running smoothly by clearing all those processes and background applications that pile up over time. A shutdown gives your OS a fresh start and clears all sorts of minor glitches.
Inconvenient? Use Sleep Mode
If you find it inconvenient to shut down your PC, put it into sleep mode instead.
It takes time to boot up a computer and sometimes you just want to resume your session where you left off. Fortunately, you don’t need to burn electricity and listen to noisy fans all night to do that. That’s what sleep mode is for. This power-saving mode barely uses any power and lets you get back to your session almost instantly. Use it instead of leaving your PC on overnight.
When to Shutdown Your Mobile Devices
You almost never have to shut down your mobile devices. If you’re shutting down your phone at night thinking you’re increasing the battery’s lifetime, stop. This is a myth. There’s no need to shut down your iPhone, iPad, or Android devices.
Shutting down a computer saves money on electricity, maintenance, wear and tear, and lowers the risk that comes with being plugged in an electrical socket non-stop. Mobile devices are different even though they also have a processor and RAM. Batteries wear down mainly by being fully discharged hundreds of times. Shutting down your phone at night doesn’t help.
Mobile devices also rely on flash memory instead of mechanical drives so running 24/7 doesn’t cause any damage over time.
The only time you should shut down a smartphone or a tablet is when something isn’t working as it should. Minor system glitches pop up over time and will slow your phone down. A shutdown will reset the system and clear any processes and temporary data that are causing the system errors.
The Bottom Line
Are you worried about regularly turning your computer on and off?
Don’t be. It’s safe to shut it down on a daily basis.
Is it safe to leave your devices on 24/7?
Yes, with one or two caveats. Mobile devices can run non-stop without issues. Whether you turn them off or not doesn’t really matter. You won’t damage them. The same thing goes for your computer, except you need to protect it from external risks like power outages and surges.
That said, if you’re not using your devices for anything at night, you might as well shut them down or at least switch them to a power-saving mode. Also, turning off your phone can increase the security and privacy of your device according to security researchers.
