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Code 128A encodes
numbers 0-9, uppercase A-Z, and control characters, and special
characters.
ASCII characters 00
to 95 (0–9, A–Z and control codes), special characters, and FNC
1–4
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.
The Code 128
barcode standard was developed in 1981 by Computer Identics
Corporation (USA). It can represent all 128 ASCII code
characters, suitable for convenient application on computers.
The purpose of formulating this standard is to improve the
coding efficiency and reliability of barcodes.
Code 128 is a very
effective, high-density symbology which permits the encoding of
alphanumeric data. It includesverification protection both via a
checksum digit and byte parity checking. This symbology has been
widely implemented in many applications where a relatively large
amount of data must be encoded in a relatively small amount of
space.
Code128 is a
high-density barcode. By using three versions of character sets
(A, B, C) and selection of start characters, code set
characters, and conversion characters, the most optimal barcode
can be selected according to different data types and lengths.
Appropriate encoding method. This can reduce the length of the
barcode and improve coding efficiency. In addition, Code128 also
uses a check character and a terminator, which can increase the
reliability of the barcode and prevent misreading or missing
reading.
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