The first barcode checkout began with a pack of gum
On June 26, 1974, a pack of Wrigley’s Juicy Fruit gum became the first retail product scanned with a Universal Product Code (UPC) at a supermarket checkout in Troy, Ohio. The memorable part is not that gum was technologically special. It was an ordinary packaged product passing through a system designed to make checkout faster and inventory easier to track.
A barcode identifies the item; it doesn’t contain its price
The black bars and white spaces represent a number that identifies a product. A scanner reads the pattern by detecting how light reflects from the label, then sends the number to the store’s computer. The computer matches it to a product record, which can include the item’s name and current price. That distinction matters: the barcode usually identifies what the product is, while the store’s records supply what it costs.
Before widespread scanning, checkout staff had to enter prices or rely on labels and manual procedures. A machine-readable product number offered a way to ring up items consistently—and to record sales in a form that stores could use to manage stock. But that depended on more than a scanner: retailers and manufacturers needed a shared numbering system, printed labels, compatible equipment, and store computers able to interpret the numbers.
Why an ordinary item became a milestone
The gum’s scan marked a practical turning point, not the instant arrival of today’s checkout. The system still had to prove useful in everyday retail and spread across businesses. Once it did, a small change at the register connected the act of buying an item to a stream of sales and inventory data. The first product in that new routine was not a remarkable machine or luxury good, but a pack of gum.
