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  2. 10 Receipt Scanner Apps That Reward You for Everyday Shopping

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

    1. Fetch Rewards: Best for Free Gift Cards. Fetch Rewards lets you earn a minimum of 25 reward points by scanning digital and print receipts — 35 points minimum for qualifying purchases. It also ...

  3. Image scanner - Wikipedia

    en.wikipedia.org/wiki/Image_scanner

    Image scanner. A flatbed scanner. Documents or images are placed face-down beneath the cover (shown closed here). An image scanner —often abbreviated to just scanner —is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.

  4. 7 best cashback apps to stretch your dollar — and earn ...

    www.aol.com/finance/best-cash-back-apps...

    Types of cashback apps. You’ll find a wide range of apps that can help you save money, though cashback apps tend to fall within three main ways to earn: Cash back. These apps provide online ...

  5. Card reader - Wikipedia

    en.wikipedia.org/wiki/Card_reader

    A photoelectric punched card reader patent was issued in 1971. Other optical card readers Business card text scanners. A business card reader is a portable image scanner device or mobile app that uses optical character recognition to detect specific data fields on a business card and store that data in a contact database or 'electronic rolodex ...

  6. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    QR codes storing addresses and URLs may appear in magazines, on signs, on buses, on business cards, or on almost any object about which users might want information. Users with a camera phone equipped with the correct reader application can scan the image of the QR code to display text, contact information, connect to a wireless network , or ...

  7. Near-field communication - Wikipedia

    en.wikipedia.org/wiki/Near-field_communication

    This chip is commonly found in smartphones and other NFC devices. Near-field communication ( NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 centimetres (1.6 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of ...

  8. Credit card imprinter - Wikipedia

    en.wikipedia.org/wiki/Credit_card_imprinter

    Credit card imprinter. A credit card imprinter, colloquially known as a ZipZap machine, click-clack machine or Knuckle Buster, is a manual device that was used by merchants to record credit card transactions before the advent of payment terminals. [1]

  9. Optical character recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_character_recognition

    Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. 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 ...

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