For Desktop user: STEP 1: Locate and press the power button in the front or on the top of the system unit. STEP 2 : Press this button down once with a firm pressure, but not too hard. STEP 3 : Wait a few second for the desktop to turn on.
For Laptop user: STEP 1 : Look at your computer. Search for the button on the top-left, top-right or the sides of the laptop . The power button is normally a dime-sized round button, and on most computers have a round circle icon. STEP 2 : Press this button down once with a firm pressure, but not too hard. STEP 3 : Wait a few second for the laptop to turn on.
Congrats you have successfully turned on your computer
How to Turn off/shutdown a Laptop?
STEP 1 : Move your mouse to the lower left-hand corner of the screen and click Start ( windows logo). or press Windows logo key + X on your keyboard. Tap or click Shut down or sign out and choose Shut down .
STEP 2: Click power and select shutdown from the option.
Wait until the laptop/desktop turns itself off.
Congrats you have successfully turned off your computer