Unpacking Barcodes and QR Codes

This chapter explores the fundamental differences between barcodes and QR codes, emphasizing their distinct capacities for encoding information. It provides insights into the Universal Product Code (UPC) system and the registration process for manufacturers, using relatable examples like Coca-Cola and t-shirts. The discussion also highlights the complex interplay of technology and human interaction in retail settings, addressing both the functionality of barcodes and the nuances of pricing mechanisms.