📖 what
What is a barcode?
TechnologyRetail
Quick Answer
A barcode is a machine-readable pattern of lines or squares that stores information about an item.
The Full Story
Barcodes are used on products, tickets, and inventory labels to encode numbers or other data that scanners can read quickly. The first commercial barcode system was adopted in the 1970s, helping transform retail checkout and supply chains. Later, two-dimensional codes such as QR codes expanded the amount of information that can be stored. Barcodes remain essential in logistics, medicine, and retail because they make identification fast, cheap, and reliable.
Key Facts
1.First commercial systems appeared in the 1970s
2.Used in retail, logistics, and medicine
3.QR codes are a two-dimensional evolution
YouTube Angle
Suggested video title for this topic:
"The tiny code that powers global shopping"