Code 39 This barcode allows the use of digits and characters. Its name was derived from the fact that it could only encode around 39 characters. Code 39 barcodes, often known as Code 3 of 9, are frequently used by the U.S. Department of Defense and the automotive sector to label products across many different industries. However, The low data density of Code 39 is one of its drawbacks. For that reason, the number has now increased to 43. It allows the use of both numerals and characters and got its name from the fact that it could only encode 39 characters although the character set has been expanded to 43 in the most recent version. These barcodes are not appropriate for very small goods and assets tracking due to the size requirements. Code 39 is still a popular and useful option, though, in part because it does not need the creation of a check digit. Code 128 This particular barcode is more recent. It has the ability to encrypt any character in the ASCII 128-character set. Ordering and distribution use Code 128 barcodes, which are high-density, compact codes used in the logistics and transportation sectors. You can utilize a variety of characters because it can encode integers, letters, and pronunciation marks. Because of this, it is a strong barcode that can hold virtually any type of data. Code 128’s high data density is its main benefit. These barcodes are perfect for identifying shipping or packaged containers and objects since they can hold substantial amounts of linear data in a small package. They are designed for non-POS products, such as when supply chain applications serial ship container codes on units (SSCC). It is mostly used for the distribution of orders, transportation, and logistics.