The power button on computers used to be a physical button that would turn off the power to the computer. To safely turn off the computer, you would shut down via the operating system, it would then say "it is now safe to turn off your computer" and then you would press the power button.
On modern computers, short-pressing the power button when the computer is on sends a signal to the operating system which the operating system can then decide how to respond to. This is known as an ACPI Shutdown.
0:00 - Intro
1:23 - Windows 1 to Windows NT 3.1
1:38 - Windows 95
1:58 - Windows NT 4.0
2:24 - Windows 98, 2000, ME
2:54 - Windows XP
3:19 - Windows Vista to Windows 8.1
3:43 - Windows 10 and 11
4:11 - GNOME (Ubuntu, Fedora, Kali Linux, Pop!_OS, Zorin OS)
4:35 - KDE (KDE neon, Kubuntu)
4:49 - Cinnamon (Linux Mint)
4:58 - XFCE (Debian 10, MX Linux)
5:12 - LXDE (Raspbain)
5:19 - Unity (Old Ubuntu)
5:32 - MATE (Ubuntu MATE 21.10, Ubuntu MATE 15.10)
5:45 - Budgie (Ubuntu Budgie)
5:53 - Deepin Desktop (Deepin OS 20.4, Deepin OS 15.3)
5:08 - MaXX (Lirix)
6:16 - Elementary OS
6:23 - Endless OS
6:31 - theShell
6:40 - BionicPup32
6:50 - Chrome OS
6:57 - Android x86
7:07 - Arch Linux
7:16 - Ubuntu Server
7:24 - Windows PE (Windows 10 Installer, Windows XPE, Hirens BootCD PE)
7:37 - MS-DOS
7:44 - FreeDOS
7:52 - FreeBSD
8:03 - IBM OS/2 WARP 4
8:12 - Sun Solaris 2.4
8:19 - ReactOS
8:27 - SkyOS
8:34 - Haiku
8:42 - MikeOS
8:52 - Plan 9
9:01 - HelenOS
9:08 - Table
9:28 - End screen
On-screen text - joined lines: [ Ссылка ]
On-screen text - seperate lines: [ Ссылка ]
blind accessible version: [ Ссылка ]
A couple more points that I didn't mention in this video:
- In Windows 2000 and later, if hibernation is enabled, "Hibernate" will be another one of the options that the power button can be set to.
- In Windows, if the power button is set to shutdown, while the computer is locked, pressing the power button does nothing.
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