Terms starting with Q

QR Codes

QR codes stand for Quick Response codes — two-dimensional barcodes (a matrix of black squares on white) that hold information like URLs or text, scannable by any smartphone camera. Introduced in 1994, they've since become a key tool for communication, event management, and marketing. They bridge offline and online interactions, making them highly effective in OOH advertising — billboards and transit displays use QR codes to instantly connect audiences to digital content. In supermarket advertising, QR codes on shelves and packaging let shoppers scan for offers or product info on the spot. This instant connectivity drives traffic, boosts engagement, and enables seamless online payments — linking physical ad spaces to digital action.