Technology has undergone huge evolution since the introduction of the smartphone, almost a decade ago, and one of the key changes that we have seen is the introduction of QR codes. For those of you who don’t know, a QR code is a type of machine-readable matrix bar code that contains information about a certain product or these days even users to which they are linked.
It is interesting to note that QR codes were designed way back in 1994, but their use case has undergone a major change in the last 4-5 years. Earlier, QR codes were linked to products and you needed a barcode reader to basically scan the code in order to see critical information about the product in question. You can still see these barcodes and QR codes on daily products. The best example of this is supermarkets. Every time we go to a supermarket, the cashier uses a barcode scanner and the name and price of the item appear instantly in his/her billing table. More recently, QR codes are being employed by social media platforms and what they do is condense the information about the user into that QR code, and whenever this code is scanned, the person scanning can interact with the user account and even follow it on social media.
But how do you scan a QR code without a barcode or QR code scanner?