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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   At table-serve restaurants, QR codes enable guests to order and pay for their meals without a waiter involved – the QR code contains the table number so servers know where to bring the food. [62] This application has grown especially since the need for social distancing during the 2020 COVID-19 pandemic prompted reduced contact between ...

3. COVID-19 contact tracing in Taiwan - Wikipedia

   en.wikipedia.org/wiki/COVID-19_contact_tracing...

   Contact Information registration is imposed as a part of the Taiwanese government's effort to combat the COVID-19 pandemic. Contact information registration required citizens to scan a QR-code before entering a public space which would redirect the user to the user’s chosen SMS application and with a prewritten text message to the number ...

4. vCard - Wikipedia

   en.wikipedia.org/wiki/VCard

   vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code.

5. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 [1] by Denso Wave as ISO/IEC 23941. [ 2 ] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.

6. Add or disable 2-step verification for extra security - AOL Help

   help.aol.com/articles/2-step-verification...

   We'll send you a text or call you with a new code that needs to be entered at sign-in. The phone number we contact you with may be different each time. Enable 2-step for phone. 1. Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on. 3. Select Phone number for your 2-step verification method. 4.

7. Contact AOL customer support

   help.aol.com/articles/account-management...

   For additional hours of operation for different services visit our support options page for contact info. Social media support Find us on X (formerly known as Twitter) or Facebook .