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  2. 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 ...

  3. 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 ...

  4. Comparison of instruction set architectures - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_instruction...

    An instruction set architecture ( ISA) is an abstract model of a computer, also referred to as computer architecture. A realization of an ISA is called an implementation. An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between ...

  5. Four Corners Model for Payment Security - Wikipedia

    en.wikipedia.org/wiki/Four_Corners_Model_for...

    Participants. The Four Corners Model involves four participants: the Cardholder, the Merchant, the Issuer, and the Acquirer. [1] 1. Cardholder. The Cardholder is the consumer who has been issued a payment card by their bank or other types of financial institution. The Cardholder does not own this card.

  6. SWIFT - Wikipedia

    en.wikipedia.org/wiki/SWIFT

    The Society for Worldwide Interbank Financial Telecommunication ( Swift ), legally S.W.I.F.T. SC, is a cooperative established in 1973 in Belgium ( French: Société Coopérative) and owned by the banks and other member firms that use its service. SWIFT provides the main messaging network through which international payments are initiated. [2]

  7. ARM architecture family - Wikipedia

    en.wikipedia.org/wiki/ARM_architecture_family

    ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of RISC instruction set architectures (ISAs) for computer processors. Arm Ltd. develops the ISAs and licenses them to other companies, who build the physical devices that use the instruction set.

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