Ключевые слова: advertising, bank, bill, business, buy, cafeteria, cash, cashier, commercial, communication, credit, customer, data, debit, device, digital, electronic, finance, financial, laptop, less, mobile, money, pass, pay, payment, phone, pin code, pos, purchase, reader, restaurant, retail, sale, shop, shopping, store, table, terminal, transaction, transfer, wallet, wireless,