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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   Whereas a barcode is a machine-readable optical image that contains information specific to the labeled item, the QR code contains the data for a locator, an identifier, and web-tracking. To store data efficiently, QR codes use four standardized modes of encoding: (I) numeric, (ii) alphanumeric, (iii) byte or binary, and (iv) kanji. [4] Compared to standard UPC barcodes, the QR labeling system ...

3. Five apps for business card scanning - AOL

   www.aol.com/news/2013-03-18-five-apps-for...

   Persistent critters, those little analog cardboard rectangles. Even with the option to scan QR Codes, email vCards or bump phones to swap contact information, the venerable business card keeps on ...

4. Optical character recognition - Wikipedia

   en.wikipedia.org/wiki/Optical_character_recognition

   Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and billboards in a landscape photo) or from subtitle text ...

5. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   Barcode reader. A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals. Additionally, nearly all barcode readers contain ...

6. 10 Receipt Scanner Apps That Reward You for Everyday ... - AOL

   www.aol.com/finance/best-receipt-scanner-apps...

   Receipt scanner apps are often used by businesses and consumers to help keep track of ongoing expenses. However, some apps go above and beyond by rewarding you for making everyday purchases. Simply...

7. Mobile tagging - Wikipedia

   en.wikipedia.org/wiki/Mobile_tagging

   Mobile tagging is the process of providing data read from tags for display on mobile devices, commonly encoded in a two-dimensional barcode, using the camera of a camera phone as the reader device. The contents of the tag code is usually a URL for information addressed and accessible through Internet. the mobile tagging process.