The Code 128
barcode was developed by COMPUTER IDENTICS in 1981. It is a
variable-length, continuous alphanumeric barcode. It can encode
all 128 ASCII characters.
Code 128 barcode
consists of blank space, start mark, data area, check character
and terminator. It has three subsets, namely A, B and C, which
can represent different character sets. It can also be used to
achieve multi-level encoding through the selection of starting
characters, code set characters, and conversion characters.
Code 128C: encodes
numeric data and FNC1, specially optimized for numbers.
Code 128 barcodes
are widely used in internal corporate management, production
processes, and logistics control systems. It has many
application scenarios, mainly in industries such as
transportation, logistics, clothing, food, pharmaceuticals, and
medical equipment. It can encode numbers and letters, as well as
some special symbols and control characters. There is also a
subset of the Code 128 barcode called GS1-128, which is a
product identification code for supply chain management.