Final answer:
The system for electronic funds transfers (EFT) in which machines are located in a merchant's store and are activated by the consumer's identification card and code is the Point of Sale (POS) system.
Step-by-step explanation:
The system for electronic funds transfers (EFT) in which machines are located in a merchant's store and are activated by the consumer's identification card and code is the Point of Sale (POS) system. This system allows consumers to make purchases by swiping their cards and entering their PINs at the checkout counter. It is commonly used in retail stores and restaurants to facilitate quick and secure transactions.