QR Code

Basics

• One of the types of 2D Barcode
• Is Royalty Free
• Can store data for website url's, passwords/authenticators, product numbers, essentially anything
• Can Also Contain Error Checking
• Each 2 by 4 square = 1 byte

See Also

• QRpedia
• 1D Barcodes
• 2D Barcodes

Useful Links

• The Wikipedia Page on QR Codes
• The Theroetical Example of ALL of wikipedia in One QR Code, rediculous concept, but helps understand the technology