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  2. Barcode reader - Wikipedia

    en.wikipedia.org/wiki/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.

  3. Barcode library - Wikipedia

    en.wikipedia.org/wiki/Barcode_library

    Barcode library or Barcode SDK is a software library that can be used to add barcode features to desktop, web, mobile or embedded applications. Barcode library presents sets of subroutines or objects which allow to create barcode images and put them on surfaces or recognize machine-encoded text / data from scanned or captured by camera images with embedded barcodes.

  4. Universal Product Code - Wikipedia

    en.wikipedia.org/wiki/Universal_Product_Code

    A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...

  5. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    The earliest, and still [when?] the cheapest, barcode scanners are built from a fixed light and a single photosensor that is manually moved across the barcode. Barcode scanners can be classified into three categories based on their connection to the computer. The older type is the RS-232 barcode scanner. This type requires special programming ...

  6. Incoming Trump admin looks to expand use of ankle monitors ...

    www.aol.com/news/incoming-trump-admin-looks...

    The "Alternatives to Detention" program is tracking more than 25,000 migrants using ankle and wrist-worn monitors, which costs taxpayers an average of nearly $80,000 each day, according to ICE data.

  7. Optical mark recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_mark_recognition

    The first mark sense scanner was the IBM 805 Test Scoring Machine; this read marks by sensing the electrical conductivity of graphite pencil lead using pairs of wire brushes that scanned the page. In the 1930s, Richard Warren at IBM experimented with optical mark sense systems for test scoring, as documented in US Patents 2,150,256 (filed in ...

  8. Alex Ovechkin takes part in a full Capitals practice. He ...

    www.aol.com/alex-ovechkin-takes-part-full...

    Alex Ovechkin's pursuit of Wayne Gretzky's NHL career goals record should be back on very soon. Signs point to Ovechkin returning to the Washington Capitals' lineup on Saturday night at the ...

  9. 18 New Anti-Inflammatory Recipes to Make in January - AOL

    www.aol.com/18-anti-inflammatory-recipes-january...

    They only take 15 minutes to roast, so pop them in the oven while you make the sauce. Use multicolored carrots if you want a medley of colors. View Recipe. Roasted Sweet Potatoes with Citrus-Maple ...

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