#qrcode #storyofqrcode
Almost all of us have seen QR codes before, they are like everywhere now, from making payments, or packaging gadgets or on business cards. Companies and even people nowadays use QR code to give information that is quickly accessible and can be seen even with a smartphone. But have you ever wondered why there are 3 big squares in each and every QR code we have come across. Let's take a look at what are these QR's actually.
![](https://i.ytimg.com/vi/0vSOoTwqtAY/maxresdefault.jpg)