QR Code (Quick Response Code)

- 2D Barcode
- Can contain up to 4,296 alphanumeric characters
- Typically leads to a website
- Developed in 1994
- Can be scanned with a smart phone or 2D scanner

- 2D Barcode
- Can contain up to 2,335 alphanumeric characters
- Great for encoding large amounts of information on a small amount of space
- Most secure barcode there is
- Developed in 1989
- Can be scanned with a smart phone or 2D scanner

- 1D Barcode
- Developed in 1960s
- Can be scanned with a 1D scanner and most 2D scanners
- Code 39
- Can encrypt the alphabet, digits 0-9, and special characters: – “. $ % + – / *”
- Uses 9 elements per character (5 bars and 4 spaces)
- Larger in size
- Great for encoding short serial numbers
- Code 128
- Can encrypt all 128 ASCII symbols
- Uses 6 elements per character (3 bars and 3 spaces)
- More space efficient
- Great for encoding long strings of information