The_Official_Raspberry_Pi_-_Beginner’s_Book_Vol1,_2018 (1)

(^26) THE OFFICIAL RASPBERRY PI BEGINNER'S GUIDE
Connecting the microSD card
To install the microSD card, which is the Raspberry Pi’s storage, turn the Raspberry Pi over and
slide the card into the microSD slot with the label facing away from the Pi. It can only go in one
way, and should slide home without too much pressure.
The microSD card will slide into the connector, then stop without a click.
If you want to remove it again in the future, simply grip the end of the card and pull it gently
out. If you’re using an older model of Raspberry Pi, you’ll need to give the card a gentle push
first to unlock it; this isn’t necessary with a Raspberry Pi 3 or newer.