A barcode and a barcode reader were first rolled out in the supermarkets in the 1970s, which then became important tools globally. It was used across multiple industries to improve data efficiency and was not just limited to warehouses or retail shelves. But now, after so many years, thanks to technology, we now have a barcode scanner online which can be used for shopping, paying bills, etc. Come, let’s understand the benefits and uses of a barcode. ● Efficiency in data collection - When you scan a barcode, you can instantly get a large amount of data in your system. This is valuable as it saves your time and works efficiently by keeping an exact and accurate count of the data. This saves manual work while eliminating the need to train a person to do the job. There are now QR codes online too that can be scanned to access the stored data. ● Detects and reduces error - Manual data entry can come with a lot of errors. According to various researches, even the most effici