BETA
Chapter 1
The board game inspiration
Chapter 2
Anatomy of the square
Chapter 3
The magic of error correction
Chapter 4
From factory floor to global daily life
YOUR GOAL
Master of How QR codes work
Ch 4 · From factory floor to global daily life
marcus The QR Code
Three corner squares scan fast from any view, Bringing all the data straight to you.
marcus Quishing scams involve malicious actors pasting fake QR codes over legitimate ones to steal data.
marcus The COVID-19 pandemic turned QR codes into a global standard for touchless information.
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?