EPOS refers to electronic point of sale systems that retailers use to record purchases. EFTPOS allows customers to pay for items using debit or credit cards directly at the point of sale. Loyalty cards allow supermarkets to collect purchase data from individual customers to target them with specialized advertising. Self-service checkouts reduce the number of staff needed and pass savings to customers. Shelf-edge labels standardize product information to make shopping easier. Fast food terminals take orders in restaurants and send them directly to the kitchen for preparation.