I studied the difference between credit cards and cash. Credit cards, the user does not need to carry cash in bulk, in order to pay for the goods with high price. The highlight of the credit card is to swipe to pay products. There are so many other privileges to meet the needs of users, it allows to perform the day-to-day life of you much comfort. But most of the credit cards to use for swipe to pay for goods or services only. If bring the credit card go to press cash out of the card will be to pay the interest increase. This is considered a very high interest rate. The cash is the money we have in wallet and can spend all the time. Convenient to buy and sell goods but less secure because the risk of being robbed, so credit cards are safer than cash. When cured, it can suspend the session and make new ones.