barcode scannerAlthough not many people know how barcode works, this system is very efficient for labeling and categorizing items for anything. It can be used not only for store, library, CD, DVD or bluray collections or even storage. Basically what you need for using barcode are barcode software, thus the software that creates and print barcode, and barcode scanner. That is a device to scan and the barcode to input it into the computer.