qr code

1. uses

1.1. Mobile operating systems

1.2. URLs

1.3. Website login

1.4. Code payments

1.5. Virtual stores

2. advantages

2.1. storage capacity

2.2. Error correction

2.3. convenient

2.4. fast

2.5. free of any license

3. disadvantages

3.1. linking to dangerous web sites

3.2. enabling the microphone

3.3. stealing identity

3.4. can't be used without Internet

4. history

4.1. invented in 1994 by Denso Wave

4.2. to track vehicles during manufacture

5. standard

5.1. October 1997 – AIM

5.2. January 1999 – JIS X 0510

5.3. 1 September 2006 – ISO/IEC 18004:2006