Barcode
A machine-readable pattern that encodes a number or text so an item can be scanned quickly.
A barcode is a machine-readable representation of data, printed as a pattern of bars (1D) or squares (2D). Scanning it retrieves the encoded value instantly, which is how warehouses and checkouts identify products without typing.
Common 1D formats include Code 128 (general use), UPC-A and EAN-13 (retail), and Code 39 (industrial). QR codes and Data Matrix are 2D formats that hold far more data and can be read by any smartphone camera.
A barcode by itself just returns a value. It becomes useful when your inventory system links that value to a product record, so scanning it can receive stock, pick an order, or check a level.
Put it into practice
Related terms
- SKU (Stock Keeping Unit)A unique internal code that identifies one specific product variant so you can track and reorder it.
- GTIN (Global Trade Item Number)A globally unique product identifier (the number behind UPC and EAN barcodes) issued via GS1.
- UPC (Universal Product Code)The 12-digit retail barcode standard used in the US and Canada, encoding a GTIN.
Run it in one system
VNDLY tracks stock, orders, and suppliers together so terms like this stop being theory and start being automatic.