I break down how barcodes work and the information they reveal about products. Giuliana Rancic adds new twist to Jerry O’Connell breakup story Here's who really makes Kenmore appliances Charles Payne ...

A 2D (two-dimensional) barcode is a graphical image that stores information horizontally as one-dimensional barcodes do, as well as vertically. As a result, the storage capacity for 2D barcodes is ...