QR code

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/qr-code

1. Who invented QR code?
2. What is the inventor's affiliation?
3. What is the core encoding modes?
4. What is a QR code and why is it called "Quick Response"?
5. How did QR codes start in the car factory and what makes them faster than regular barcodes?

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who invented QR code?1994
2. What is the inventor's affiliation?Denso Wave, Japan
3. What is the core encoding modes?Numeric, alphanumeric, byte/binary, and Kanji
4. What is a QR code and why is it called "Quick Response"?A QR code is a tiny square made of black and white squares that can hold lots of information. It’s called "Quick Response" because phones and scanners can read it very fast.
5. How did QR codes start in the car factory and what makes them faster than regular barcodes?In 1994 a Toyota engineer made QR codes to track car parts. They can store more data and are read in a fraction of a second, so factories can keep track of parts quickly.

Two-dimensional matrix barcode: A barcode encoding data in both horizontal and vertical dimensions, offering higher capacity than linear barcodes.
Fiducial markers: Distinctive, easily recognizable patterns (the three large squares) that aid in the rapid detection and orientation of the QR code by scanners.
Reed-Solomon error correction: A sophisticated error-correcting code that enables data recovery even when parts of the code are damaged or unreadable.