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2. 7 Best Payment Gateways for Small Businesses - AOL

   www.aol.com/finance/7-best-payment-gateways...

   Every time you go to a store or shop online, there ultimately comes a time when you need to pay for the items in your cart. To help expedite this process, major retailers and small businesses alike...

3. Contactless payment - Wikipedia

   en.wikipedia.org/wiki/Contactless_payment

   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 making secure payments. The embedded integrated circuit chip and antenna enable consumers to wave their card ...

4. Payment system - Wikipedia

   en.wikipedia.org/wiki/Payment_system

   A payment system is any system used to settle financial transactions through the transfer of monetary value. This includes the institutions, payment instruments such as payment cards, people, rules, procedures, standards, and technologies that make its exchange possible. [1][2] A payment system is an operational network which links bank ...

5. Payment gateway - Wikipedia

   en.wikipedia.org/wiki/Payment_gateway

   A payment gateway is a merchant service provided by an e-commerce application service provider that authorizes credit card or direct payment processing for e-businesses, online retailers, bricks and clicks, or traditional brick and mortar. [1] The payment gateway may be provided by a bank to its customers, but can be provided by a specialised ...

6. Payment processor - Wikipedia

   en.wikipedia.org/wiki/Payment_processor

   Payment processor. A payment processor is a system that enables financial transactions, commonly employed by a merchant, to handle transactions with customers from various channels such as credit cards and debit cards or bank accounts. They are usually broken down into two types: front-end and back-end. Front-end processors have connections to ...

7. Square (financial services) - Wikipedia

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

   Square is a financial services platform by Block, Inc. for small and medium-sized businesses. [1] [2] It enables accepting credit card payments using smartphones as POS registers, and facilitates various business operations. As of 2023, Square reports 4 million merchant clients and an annual payment value of US$210 billion. [3] [4]