Question: what is 2d barcode scanner?
Answer: 2D Barcode Scanning: 2D barcodes, like Data Matrix, QR Code or PDF417, use patterns of squares, hexagons, dots, and other shapes to encode data. ... 2D barcode scanners are typically used to read 2D barcodes, although some 2D barcodes, like the commonly-recognized QR code, can be read with certain smartphone apps.