Standing in the 21stcentury, perhaps everyone among us knows what a credit card is. And this has changed our world in a very short span of time. The main task of a credit card is to ease the process of monetary transactions, and ease the burden of complexities associated with it. Firstly to begin with, they have eased the entire process of withdrawal of money from banks. Earlier withdrawal meant spending almost an entire day standing at the queue, then completing paperwork to get hold of your own hard earned money. But with the advent of credit cards, buying things and paying off bills became almost like a child's play, just swap your card, which contains a digital signature, and its done. All you have to do is pay the money at your bank on a later date, right at your convenience.