A: UPC stands for Universal Product Code. The bar codes were originally created to help grocery stores speed up the checkout process and keep better track of inventory. After many years of research ...

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

Philip Morris International (PMI), an Altria Group division that sells tobacco products in all parts of the world except the United States, has designed track-and-trace and authentication systems ...

I work in a big library. What is the benefit of having a printed bar code on a label, if we have an RFID tag under that label? Are there any printers made especially for encoding a tag only, not ...

Bar codes store information along one axis, horizontally. QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data.

Bar codes store information along one axis, horizontally. QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data.