They seem to be everywhere these days: restaurant menus, public transport, tickets, product packaging and payment systems.
But how many of us know what those little black and white squares actually do?
QR codes were invented in Japan in 1994 to help track automotive components. They can store much more than website addresses, and some can still be read when parts of the code are damaged.
They also have a less obvious side. A QR code can lead to a fraudulent website, and some codes rely on third-party services that may collect information about scans.
Let's discuss:
- Do you find QR codes convenient, or would you rather have traditional menus and printed information?
- Have you ever scanned a QR code that didn't work?
- Have you encountered suspicious or misleading QR codes?
- Should businesses always provide an alternative for people who cannot or do not want to scan them?
- What is the most useful or unusual application of a QR code you've encountered?
Read the full article: How Do QR Codes Work?
What has your experience been with QR codes where you live?