UPC-A

UPC-A and UPC-E. Purpose, Advantages, Limitations and Usage.
read the first part here   Purpose It is one of the oldest and most widely used barcodes. The purpose of developing UPC was to develop such a shopping or buying system where salesperson does not have to manually enter the information of a product in the database. This saves time and minimizes human error unlike manual information entry. For this purpose, IBM developed UPC in order to ensure, quick, easy and reliable information encoding [...]
UPC-A and UPC-E. History.
UPC-A and UPC-E UPC stands for Universal Product Code. It is type of linear barcodes and mostly widely used for retail applications. There are two variations of UPC • UPC-A • UPC-E UPC-A UPC-A is a variation of UPC and uses 12 digits for information encoding. Out of these 12 digits, 11 digits contain the product information while the last digit is the checksum digit. The eleven product digits are further divided into three logical [...]
read the first part hereLinear BarcodesLinear barcodes are commonly referred as first generation barcodes. These barcodes consist of vertical lines at specific gaps resulting in a particular pattern.  Hardware scanners are used to scan these patterns and decode the information stored in those particular patterns. These barcodes are also commonly called discrete, one dimensional or UPC barcodes. The examles of linear barcodes are  Code 39, EAN-8, EAN-13, EAN 128, UPC-E,  UPC-A, ISBN etc.Advantages of Linear Barcodes• In [...]