Add Yahoo as a preferred source to see more of our stories on Google. (The Conversation) — Few objects in the world are more immediately recognizable than the barcode. After all, barcodes are all ...

Once upon a time, a restless cashier would eye each and every item you, the consumer, purchased and key it into the register. This took skill but also time—and proved to be an imperfect way to keep ...

(The Conversation) — Few objects in the world are more immediately recognizable than the barcode. After all, barcodes are all around us — more than 6 billion are scanned every single day. They’re on ...

Editor’s note: The views expressed in this commentary are solely those of the writers. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news ...