Most computers have a mode called “Sleep Mode”, in which the computer is on, but it has assumed an energy-efficient, minimal power mode. To “wake” it up simply move the mouse around or press the space bar on the keyboard, and it will “wake up” and return to the exact same place that it was when it went to sleep.
To turn a computer on if it is off, simply press the power button one ( No need to hold the button, just press and release)
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