How QR codes work
Chapter 1
The board game inspiration
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Chapter 2
Anatomy of the square
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Chapter 3
The magic of error correction
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Chapter 4
From factory floor to global daily life
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YOUR GOAL
Master of How QR codes work
Ch 4 · From factory floor to global daily life
marc The QR Code
Three corner squares scan fast from any view, Bringing all the data straight to you.
Fun Fact
Street vendor banking: In China, QR codes allowed street food vendors to accept digital payments years before credit cards became common.
Glossary
qr code (noun)
A machine-readable, two-dimensional barcode consisting of a grid of black and white squares used to store data. Masahiro Hara invented the technology in 1994 to track automotive parts for a Toyota subsidiary in Japan.
A machine-readable, two-dimensional barcode consisting of a grid of black and white squares used to store data. Masahiro Hara invented the technology in 1994 to track automotive parts for a Toyota subsidiary in Japan.
Quiz
What global event in 2020 triggered the widespread adoption of QR codes in Western restaurants?
Quiz
What major advantage did QR codes offer small vendors in developing economies over credit cards?