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2. Automatic identification and data capture - Wikipedia

   en.wikipedia.org/wiki/Automatic_identification...

   Automatic identification and data capture ( AIDC) refers to the methods of automatically identifying objects, collecting data about them, and entering them directly into computer systems, without human involvement. Technologies typically considered as part of AIDC include QR codes, [1] bar codes, radio frequency identification (RFID ...

3. Unified Payments Interface - Wikipedia

   en.wikipedia.org/wiki/Unified_Payments_Interface

   www .upichalega .com. Unified Payments Interface, commonly referred to as UPI, is an Indian instant payment system as well as protocol developed by the National Payments Corporation of India (NPCI) in 2016. The interface facilitates inter-bank peer-to-peer (P2P) and person-to-merchant (P2M) transactions. [1] [2] It is used on mobile devices to ...

4. Mobile payment - Wikipedia

   en.wikipedia.org/wiki/Mobile_payment

   QR, or "quick response", bar codes were designed to contain the meaningful information directly in the bar code. QR codes can be of two main categories: [ 49 ] [ citation needed ] The QR code is presented on the mobile device of the person paying and scanned by a POS or another mobile device of the payee

5. Add, replace or remove AOL account recovery info

   help.aol.com/articles/add-or-update-aol-account...

   Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Add, replace or remove AOL account recovery info Keep a valid mobile phone number or email address on your account in case you ever lose your password or run into a prompt to verify your account after signing in.

6. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

7. Block and unblock email addresses in AOL Mail - AOL Help

   help.aol.com/articles/block-and-unblock-email...

   Block email addresses. 1. Open an email or select it from your mailbox. 2. Click the More icon . 2. Click Block Senders. 2. Optionally, select to also delete emails you've received from the sender.

8. Help:Interlanguage links - Wikipedia

   en.wikipedia.org/wiki/Help:Interlanguage_links

   Click on the greyed-out "page" field (now visible) and paste or type in the name of the article as it appears in that language's Wikipedia. Click on "publish" at the top of the box. Modifying or removing an existing interlanguage link is similar. To modify a link, click "edit", then modify the text of a link and click "publish".

9. Fix problems sending AOL Mail - AOL Help

   help.aol.com/articles/aol-mail-troubleshooting

   1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Fix problems sending AOL Mail. If you're having problems sending messages in AOL Mail, it could be for one of several reasons. Most sending issues can be fixed with a couple of quick troubleshooting steps.