Does computer sleep mode consume power?

Computer sleep mode does not consume power; computer sleep mode is a mode when the computer is in standby mode. It can be set through the computer "Power Options" menu; it can save power and is relatively "environmentally friendly" , which can save you the tedious boot process and increase the life of your computer.

#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Does computer sleep mode consume power?

A mode in which the computer is in standby mode is called computer sleep mode.

Computer sleep mode is a mode when the computer is in standby mode and can be set through the computer's "Power Options" menu. It can save power for you, which is relatively "environmentally friendly". It can save you the tedious startup process and increase the life of your computer.

Mode startup status

1. There are things that need to be handled temporarily, but the time is not long

2. There are too many edited documents and opened web pages, but they have to leave for a period of time, which is very troublesome to save.

3. In places where the use of power is restricted

New energy-saving mode Windows operating system Standby, hibernation and other modes have been added to Windows Vista for a long time, and Windows Vista has added a new mode called sleep mode. However, many people are still used to turning off the computer completely when they are not using it. In fact, by making full use of these modes, we can not only save power consumption, but also restore the system to normal working condition in the shortest possible time.

The definitions of these three modes are as follows:

Standby (Standby). After switching the system to this mode, except for the memory, the power supply to other computer devices will be interrupted. Only the memory relies on power to maintain The data in it (because the memory is volatile, as long as the power is turned off, the data is gone). In this way, when you want to restore, you can directly restore to the pre-standby state. This mode is not completely power-free, so if there is an abnormality in the power supply during standby (such as a power outage), you will have to restart the phone next time, so any unsaved data before standby will be lost. However, this mode has the fastest recovery speed and can generally be restored within five seconds.

Hibernate (Hibernate), after switching the system to this mode, the system will automatically transfer all the data in the memory to a hibernation file on the hard disk, and then cut off the power supply to all devices. In this way, when recovering, the system will read the contents of the hibernation file from the hard disk directly into the memory and restore it to the state before hibernation. This mode consumes no power at all, so you are not afraid of abnormal power supply after hibernation. The price is that it requires a hard disk space the same size as the physical memory (fortunately, today's hard disks have exceeded the TB level, and large-capacity hard disks are getting cheaper and cheaper). The recovery speed of this mode is slower, depending on the memory size and hard disk speed, generally taking about 1 minute or even longer.

Sleep is a new mode in Windows Vista. This mode combines all the advantages of standby and hibernation. After switching the system to sleep state, the system will transfer all the data in the memory to the hibernation file on the hard disk (this is similar to hibernation), and then turn off the power supply to all devices except the memory, so that the data in the memory is still maintained. (This is similar to standby). In this way, when we want to restore, if there is no abnormality in the power supply during sleep, we can directly restore from the data in the memory (similar to standby), which is very fast; but if the power supply is abnormal during sleep, the data in the memory will be restored. If the data has been lost, it can still be restored from the hard disk (similar to hibernation), but the speed will be slower. In any case, this mode will not cause data loss.

Because the sleep function has so many advantages, the power button on the Windows Vista start menu will switch the system to sleep mode by default. So we can make full use of this new feature, after all, resuming from sleep is much faster than starting from scratch. Moreover, sleep mode does not continue forever. If the system does not wake up after entering sleep mode for a period of time (the specific time can be set), it will automatically enter sleep mode and turn off the power supply to the memory to further save energy consumption. .

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