What is one-dimensional code

One dimensional code is a barcode composed of bars and blanks of different widths arranged according to a certain encoding rule, used to represent certain information. These bars and blanks can be read by photoelectric scanning devices and converted into numerical or character information that computers can understand. One dimensional codes are mainly used to identify the basic information of items and are widely used in various fields such as inventory management, logistics tracking, product sales, etc.

The information capacity of one-dimensional codes is relatively small, usually containing only a few dozen characters of information. However, due to its advantages of simple production, fast scanning, and high reliability, it is still widely used in certain situations. Common one-dimensional codes include UPC code (used for retail goods), EAN code (used for international standard product codes), Code 39 code (commonly used for inventory management), etc.

Compared with one-dimensional codes, two-dimensional codes have a larger information capacity and can store more data, including website addresses, text, images, etc. QR codes have been increasingly widely used in modern society, such as mobile payments, advertising and marketing, product traceability, etc.