Credit card processing is the method by which businesses accept payments made with credit cards. When a customer makes a purchase, their card information is securely transmitted to a payment processor, which verifies that the card is valid and has enough funds. This process happens quickly, often in just a few seconds, allowing customers to complete their transactions smoothly. Once the payment is approved, the funds are transferred from the customer's bank to the merchant's account. This involves several parties, including the credit card issuer, the merchant bank, and the payment processor. Overall, credit card processing makes shopping convenient and efficient for both customers and businesses.