I’ve always considered barcodes to be one of those invisible innovations that profoundly changed the world. What we might recognize as modern barcodes were originally designed as a labor-saving device ...

The concept of the barcode — an alphabet made up of thick and thin bars — came into being in the 1950s. It took another quarter of a century for one to be printed on product packaging and scanned.

Barcode scanners are an essential product for any retail merchant. This allows store owners and sellers to identify their products and quickly get a bill generated. While barcode scanners have existed ...