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2. Cleaning card - Wikipedia

   en.wikipedia.org/wiki/Cleaning_card

   Chip Cards are also known as Smart Cards and EMV Cards. There are two different types of EMV card readers - friction and landing. Contaminated contacts can result in rejection of the inserted payment or authorization card; the built up minerals can damage electronics. [1] The cleaning card with ensures optimal cleaning of chip reading contacts.

3. Clover Network - Wikipedia

   en.wikipedia.org/wiki/Clover_Network

   Clover is a cloud-based Android point of sale platform that was launched in April 2012.The company is headquartered in Sunnyvale, California, United States.As of the quarter ended September 2020, Clover processed $133 billion of annualized card transactions worldwide, making it the largest U.S. cloud POS firm.

4. Smart card - Wikipedia

   en.wikipedia.org/wiki/Smart_card

   A smart card (SC), chip card, or integrated circuit card (ICC or IC card), is a card used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip. [1] Many smart cards include a pattern of metal contacts to electrically connect to the internal chip.

5. How to clean your credit cards - AOL

   www.aol.com/finance/clean-credit-cards-190158535...

   Carefully clean all of the card’s crevices, including the chip. The chips seen on credit cards are water-resistant, so as long as you clean the chip’s surface carefully, you shouldn’t damage it.

6. Secure access module - Wikipedia

   en.wikipedia.org/wiki/Secure_access_module

   A Secure Access Module (SAM), also known as a Secure Application Module, is a piece of cryptographic hardware typically used by smart card card readers to perform mutual key authentication. [ 1 ] [ 2 ] [ 3 ] SAMs can be used to manage access in a variety of contexts, such as public transport fare collection and point of sale devices.

7. Card reader - Wikipedia

   en.wikipedia.org/wiki/Card_reader

   A card reader is a data input device that reads data from a card-shaped storage medium and provides the data to a computer. Card readers can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals from connections made or interrupted by a card's punched holes or embedded circuitry, or electronic ...