The vast majority of users who have a laptop or regular PC running Windows, use "Start" to shut down and turn off the system, then "Shutdown" and "Logout". Few people know what a dream or hibernation of a laptop is, but meanwhile, these modes can do a good job if you know what they are and in what cases it is advantageous to use them. The time has come to fill in the gaps and take a closer look at these points.
What is sleep mode?This option will certainly interest those who use a PC at home and are interested in the fastest possible boot of the computer. In this mode, the current state of the system is also memorized, but if hibernating a laptop involves turning off the power, then this does not happen in sleep mode. The operating system simply pauses its work just like a tape recorder stops playing a melody if you press the pause key. In this condition, the laptop can be up to about 12 hours - although the battery is discharged, it is much slower than with minimal load of the OS in normal mode. In order to "wake up" the PC, just move the mouse, press any key or simply open its cover.
What is hibernation?
On a laptop, as well as on a netbook, tablet, and any other mobile equipment with Windows Vista / 7/8, the most critical for the user is the boot time and the level of energy consumption of the system. Therefore, just for such devices, this mode is the most optimal. Hibernating a laptop allows you to quickly restore work without waiting for the launch of all applications that were launched before shutting down. Moreover, the state of the system (running programs and processes, open windows) will be exactly the same as the moment of activation of this mode.
How else does hibernation of a laptop differ from sleep mode
In a sleeping state, the computer, in fact, continues to work (only the HDD, display and cooling system are turned off), and if the mobile device is in this state for a long time, sooner or later the battery will run out. In hibernation mode, on the contrary, the PC is completely de-energized, unless, of course, the power of the crystal oscillator, which supports the correct display of time / date in the BIOS, is not taken into account. Moreover, at the time of transition to this mode, the exact image of the RAM is recorded in the memory of the hard disk.
And when you turn on the PC, this copy is restored back, which allows you to continue working from the moment of the previous stop, without worrying about the battery running out. By this time, many have probably already asked the question: "How to enable hibernation?" This can be done both through the settings of the "Start" button itself, and in the control panel, in the tab responsible for configuring the power settings. By the way, in the latter case, you can configure not only the activation of this mode by pressing the power button, but also the preferred action when closing the lid of the laptop.