Code 128 is a variable length, high density, alphanumeric symbology.
It is a very effective, high-density symbology which encoding of alphanumeric data.
![[Note]](http://www.crifan.com/files/res/docbook/images/note.png) | Note |
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high-density: the high density means: when encoding the numeric data, then using Code set C, which using one code to represent two digital data. While normally using one code represent one digit/data. |
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| Chapter 1. Code 128 Definition |  | 1.2. Checksum Digit |
