WOL is an old feature where you could even boot a PC that is off, not just asleep, but you had to confine it in the BIOS. It has become less useful with compute

WOL is an old feature where you could even boot a PC that is off, not just asleep, but you had to confine it in the BIOS. It has become less useful with computers able to go into power save modes that are almost as good as having it fully off energy-wise.