Cash register
Many modern cash registers and POS terminals also allow payments by electronic funds transfer (EFT), such as a debit card or credit card. In this case, the customer has to use a small machine next to the cash register  or POS terminal that reads the data from his or her card. Depending on the type of card being used, he or she and might have to enter a personal identification number (PIN) to confirm the transaction. Many debit and credit cards now have a feature called contactless payment, which allows the user to simply tap his or her card on the reader to pay, making it quicker than other methods such as a chip or magnetic stripe. It uses radio-frequency identification (RFID) technology, which is compatible with near field communication (NFC) that is built into many mobile phones. Companies like Apple, Google, and Microsoft have all made NFC-based mobile payment systems for platforms like iOS, Android, and Windows.