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[What is a Debit Card]

A Debit Card is a ISO 7810 card which physically resembles a credit card, and, like a credit card, is used as an alternative to cash when making purchases. However, when purchases are made with a debit card, the funds are withdrawn directly from the purchaser's bank account. Debit cards use the same underlying technology as ATMs (bank machines) that dispense cash; authentication may consist of the use of a numeric PIN (personal identification number) known only to the cardholder. PINs can be used only where the POS (point of sale) terminal is properly equipped; in particular, a separate keypad is needed to allow the customer to enter his or her PIN and select the account from which funds should be drawn.

Some debit cards carry the logotypes of, and can be used in a manner nearly identical to, major credit cards (e.g. Visa or MasterCard). The use of a debit card in this manner may have a daily limit, with the maximum limit being the amount of money on deposit. A debit card used in this manner is similar to a secured credit card.

Some POS terminals allow the user of a Visa or MasterCard debit card to choose whether the purchase is a "credit" or "debit" purchase. In a "credit" purchase, the user signs a charge slip (as in a traditional credit card purchase); in a "debit" purchase, the user enters a PIN. In either case, the user's bank account is debited. Typically, (as of this writing) a "credit" transaction is without cost to the purchaser while a small fee is charged for "debit" transactions. Other differences are that "debit" purchasers may opt to withdraw cash in addition to the amount of the debit purchase; also, from the merchant's standpoint, the merchant pays no fee to receive the proceeds of a "debit" transaction while paying a percentage of "credit" transactions, just as merchants pay a fee to process pure credit card transactions. The fees charged to merchants on "credit" debit card purchases -- and the lack of fees charged merchants for processing "debit" debit card purchases and paper checks -- have prompted some major merchants to file lawsuits against debit-card transaction processors such as Visa and MasterCard. Many consumers prefer "credit" transactions because of the lack of a fee charged to the consumer/purchaser -- and many POS terminals now make the "credit" function more difficult to access.

Debit cards, and secured credit cards, are popular among college students who have not yet established a credit history. There are also forms of debit cards (e.g. Visa Buxx) that are purchased by parents for teens as young as 13. The parent retains a great deal of control over the teen's use of the cards.

Debit cards are also similar to stored-value cards in that they represent a finite amount of money owed by the card issuer to the holder. They are different in that stored-value cards are generally anonymous, while debit cards are generally associated with an individual's bank account. Debit cards usually offer some protection against loss, theft, or unauthorized use while stored value cards usually do not.


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