Barcode readers
O Businesses and organizations can also create and use custom barcodes to fulfil their unique needs. O The most popular barcode for these types of nonfood use is Code 39, which can encode both letters and numbers. O These conventional types of barcodes are referred to as one-dimension (1D) barcodes. O Newer two-dimensional (2D) barcodes store information both horizontally and vertically and can hold significantly more data up to several hundred times more.