Computer Science for IGCSE & O level - Hardware (Section 17 - No. 37)
How do QR codes and bar codes differ in the amount of data they can store?
QR codes store less data than barcodes.
QR codes store more data than barcodes.
They both store the same amount of data.
The amount of data depends on the scanner.
Giải thích
QR codes can store more data than a standard barcode.