Credit is defined as "The ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future."
A credit card is a small plastic card issued by a bank, business, etc., allowing the holder to purchase goods or services on credit.
Credit cards are a great way to build a positive credit history. However, they can get you into debt if you are not responsible. Keep your credit balances low, under 10% no higher than 20% as you build your credit.
I recommend these three credit cards.