What are the 3 pieces information found on a bar code?

* Product code: This is the unique identification number for the product. It is typically 6 to 13 digits long.

* Manufacturer code: This is the code for the manufacturer of the product. It is typically 2 to 5 digits long.

* Check digit: This is a single digit that is used to verify the accuracy of the barcode. It is calculated using a mathematical algorithm based on the other digits in the barcode.