13th February 2005, 9:44 PM
Though advanced machines require a pin number for debit cards and a signature for credit cards, some machines will run any card as one or the other. Some places require a pin number, some places require a signature, some places you can choose between debit (pin number) or credit (signature), and some places (like Chick-Fil-A and gas stations) only require a swipe of the card, which is odd. I make online purchases with my debit card all the time, and the sites never ask me what kind of card it is. They simply refer to it as a credit card or a Visa.