Editing Code 128 (section)

{{Short description|Barcode format}}
{{More citations needed|date=April 2024}}
[[File:9494-RI476394652CH.jpg|250px|thumb|A Swiss postal barcode encoding "RI 476 394 652 CH" in Code 128 (B & C)]]
'''Code 128''' is a high-density [[linear barcode]] symbology defined in ISO/IEC 15417:2007.<ref>{{Cite web|url=https://www.iso.org/standard/43896.html|title=ISO/IEC 15417:2007 - Information technology -- Automatic identification and data capture techniques -- Code 128 bar code symbology specification|website=www.iso.org|language=en|access-date=2018-02-15}}</ref> It is used for [[alphanumeric]] or numeric-only [[barcode]]s. It can encode all 128 characters of [[ASCII]] and, by use of an extension symbol (FNC4), the Latin-1 characters defined in [[ISO/IEC 8859-1]].{{Citation needed|date=May 2009}} It generally results in more compact barcodes compared to other methods like [[Code 39]], especially when the texts contain mostly digits. Code 128 was developed by the Computer Identics Corporation in 1981.<ref>{{cite web |title=CODE 128 and GS1-128 |url=https://www.keyence.com/ss/products/auto_id/codereader/basic/code128.jsp |website=Barcode Information & Tips |publisher=Keyence |access-date=November 6, 2023}}</ref>

[[File:GS1-128 product barcode.jpg|250px|thumb|A GS1-128 barcode encoding GTIN, best before date and batch number]]
'''GS1-128''' (formerly known as UCC/EAN-128) is a subset of Code 128 and is used extensively worldwide in [[shipping]] and [[packaging]] industries as a product identification code for the container and pallet levels in the supply chain.