Barcodes work based on light reflected back to scanner optics: black does not reflect light, while the white (blank) spaces do reflect light. Because characters (alphabetic, numeric, special) are ...

(The Conversation) — Few objects in the world are more immediately recognizable than the barcode. After all, barcodes are all around us — more than 6 billion are scanned every single day. They’re on ...

Difference Between a Barcode and a QR Code: A Barcode is a 1-D code that contains just simple numbers or letters. A QR Code ...

The first modern barcode was scanned 50 years ago this summer—on a 10-pack of chewing gum in a grocery store in Troy, Ohio. Fifty is ancient for most technologies, but barcodes are still going strong.

Benjamin Claeys is CEO of QR TIGER, MENU TIGER and GiftLips. He also hosts Stay QRious, a podcast about QR code best practices. Barcodes have been a staple of commerce since the first UPC barcode was ...