So we all know what credit cards are , right? Those magic cards which you pick out from your pockets and buy whatever stuff you want but do you know how this whole payment process works when you swipe the card?
What’s the architecture behind it?
We will try to understand this process with a very simple example.
So let’s say you go to your favourite restaurant, although going out has really become a dream lately.
Okay so after the meal it’s time to pay.
Now, you take the help from your little card friend and simply swipe it in the POS machine