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2. Point of sale - Wikipedia

   en.wikipedia.org/wiki/Point_of_sale

   The point of sale (POS) or point of purchase (POP) is the time and place at which a retail transaction is completed.At the point of sale, the merchant calculates the amount owed by the customer, indicates that amount, may prepare an invoice for the customer (which may be a cash register printout), and indicates the options for the customer to make payment.

3. Payment terminal - Wikipedia

   en.wikipedia.org/wiki/Payment_terminal

   PAX Technology S90 credit card terminal with a Visa card inserted.. A payment terminal, also known as a point of sale (POS) terminal, credit card machine, card reader, PIN pad, EFTPOS terminal (or by the older term as PDQ terminal which stands for "Process Data Quickly" [1]), is a device which interfaces with payment cards to make electronic funds transfers.

4. Verifone - Wikipedia

   en.wikipedia.org/wiki/Verifone

   This move opened the way for the creation of an industry devoted to producing POS authorization systems. Early systems typically had starting prices of $900. Verifone introduced its first POS product in 1982. [21] By lowering manufacturing and operating costs through outsourcing production, Verifone brought its first system to the market at $500.

5. Square (financial services) - Wikipedia

   en.wikipedia.org/wiki/Square_(financial_services)

   Square is a point-of-sale system for merchants with physical or online stores. [1] [2] Launched in 2009 by Block, Inc., [3] it enables sellers to accept card payments and manage business operations. As of 2023, Square is the U.S. market leader in point-of-sale systems, [4] [5] [6] serving 4 million sellers and processing $210bn annually. [7] [8]

6. Fiscalization - Wikipedia

   en.wikipedia.org/wiki/Fiscalization

   Advantages of a "closed system" are therefore: signature device, digital certificate and POS registration at the Authority, are not needed. Furthermore, fiscal law in Austria requires that every POS has a unique identification number, and every POS has to keep transaction total counters (created by Adding up every cash turnover to the previous ...

7. Contactless payment - Wikipedia

   en.wikipedia.org/wiki/Contactless_payment

   EMV contactless symbol used on compatible payment terminals. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for ...