ITPEC IP October 2020 Question 75
ITPEC IP October 2020 — Question 75 of 100
A QR code stores information in a two-dimensional pattern extending both vertically and horizontally. Its matrix of light and dark modules provides much greater capacity than a one-dimensional barcode and can include error correction.
Answer (d)
Why not others:
- ASCII is a character-encoding scheme
- G-code contains machine-tool and motion-control instructions
- EAN is a family of one-dimensional retail barcodes
Key rule: Matrix codes such as QR encode data across an area; ordinary barcodes encode patterns primarily along one dimension.
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