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  • Most people hand over their credit card to a merchant in payment for services, sign the receipt and thank the cashier, though many don't realize how their card is processed. Credit card machines are an important part of business commerce.

    Description

    The shape and size of a credit card machine can vary, but it is generally located near a cash register or in the office of a business. The machine can look like a large calculator or have a broader design. In gas stations and supermarkets, the machine may be angled so it is easier for a customer to use, and in other businesses, the machine may reside behind the counter for use by the clerk.

    Use

    A credit card is swiped along a slot in the machine that captures credit card numbers and data from the magnetic strip on the back of the card. An authorization to capture funds is submitted to the customer's bank, via dial-up or high-speed Internet, and a hold is placed on the purchase amount in the account.

    Receipt

    Credit card machines sometimes print a receipt that must be signed by the customer. Others print a receipt that shows the amount and the last four digits of the card used for the transaction.

    Signature

    Retailers and restaurants often still require a signature on the credit card receipt to exempt them from disputes from customers who claim they did not make the purchase, as the retailer is responsible for those charges. Others have determined that a signature is not necessary or slows down the point of sale process.

    Other Machines

    Some point-of-sale cash registers have credit card machines built into them, making the need for a separate machine unnecessary.

    Source:

    Brightcentral: Credit Card Processing

    NPR: Why Do We Still Have To Sign Credit Card Receipts?

    More Information:

    Merchant Service Group: Credit Card Machines

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