mã QR
Also known as Quick Response Code, QRCode
mã vạch ma trận
AI overview
A QR code is a square barcode made of black and white squares that was invented in 1994 to track car parts, and it can be read by cameras and smartphones. The code stores information in its pattern, which is extracted using special error-correction technology that allows the code to be readable even if it's partially damaged or unclear.
AI-generated from the Wikipedia summary — may contain errors.
Wikipedia views (30d)
321,617 totalvia Wikimedia Pageviews API
Wikidata facts
- Official website
- www.qrcode.com/ko
- Image
- QR code for mobile English Wikipedia.svg
Show 2 more facts
- Commons category
- QR codes
- inception
- 1994-00-00