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2. Contactless smart card - Wikipedia

   en.wikipedia.org/wiki/Contactless_smart_card

   A contactless smart card is a contactless credential whose dimensions are credit card size. Its embedded integrated circuits can store (and sometimes process) data and communicate with a terminal via NFC. Commonplace uses include transit tickets, bank cards and passports. There are two broad categories of contactless smart cards.

3. Zettle - Wikipedia

   en.wikipedia.org/wiki/Zettle

   Zettle reader. Zettle by PayPal (previously known as iZettle [1]) is a Swedish financial technology company founded by Jacob de Geer and Magnus Nilsson in April 2010. Launching its first app and service in 2011, [3] the company offers a range of financial products including payments, point of sales, funding and partners applications.

4. Square (financial services) - Wikipedia

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

   In the same year, Square launched a reader for Android and iOS that accepts contactless and chip card payments. [36] Additionally, the firm launched Square Payroll for small business owners to process payroll. [37]

5. MIFARE - Wikipedia

   en.wikipedia.org/wiki/MIFARE

   The contactless IC is based on an 8051 processor with 3DES/AES cryptographic accelerator, making very fast transactions possible. The maximal read/write distance between card and reader is 10 centimetres (3.9 in), but the actual distance depends on the field power generated by the reader and its antenna size.

6. SumUp - Wikipedia

   en.wikipedia.org/wiki/SumUp

   Chip & PIN and NFC card terminal: SumUp's main product is an EMV card reader which can read magnetic strip, chip ("Chip and Pin"), and RFID/NFC ("contactless") payment cards. [18] The card reader pairs with an Android or iOS -based smartphone or tablet via Bluetooth , to verify payments through the Internet.

7. Why businesses are not using credit card chip readers - AOL

   www.aol.com/finance/2016-04-12-why-businesses...

   Retailers are now responsible for any money lost owing to credit card fraud if they do not use a chip reader, and while some large retailers have readers installed, not all of them are actively ...