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2. 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 ...

3. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...

4. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   Barcode reader. A stationary barcode scanner for a conveyor line. 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.

5. eBay app uses barcode scanning to list your items in seconds

   www.engadget.com/2018-04-19-ebay-simplified...

   If you have the box for an item, you just have to scan its barcode (or, if that fails, search by name) and choose the item's condition. After that, the app can fill in a basic description, photos ...

6. eBay's Barcode Scanning App RedLaser Nearing Nine Million ...

   techcrunch.com/2011/03/14/ebays-barcode-scanning...

   eBay also added QR Code scanning to RedLaser last Fall, and the apps are currently seeing 4,000 Quick Response code scans per day.. eBay says that more than half of RedLaser scans are in the U.S ...

7. Google Chrome gets its own QR code & barcode scanner

   techcrunch.com/2017/02/02/google-chrome-gets-its...

   With an update rolling out today, Google’s Chrome mobile browser can do the job instead. The app now includes built-in scanning functionality, which you can access either via 3D Touch on the app ...