The digits of the code, so that humans can read it and manually enter it should the scanner have problems.
Whenever a package is accepted by UPS for shipment, a label with the delivery address and a bar code is attached to the package. The tracking number is always on this label, usually under the bar code.
The Toolbar.
The Toolbar is displayed under the menu bar.
It goes under the nutrion facts
Under the scratch off part on the back of the card.
Usually at the bottom of a card with the bar-code.
On sunlight the reflection becomes 0, so reading a bar code under a shade is advisable. the exact terminology is luminance try a color bar code
What does the number under the barcode on a can of dip mean
The Toolbar
Under electrical code 368.56(B), flexible cords and cables can be attached to building surfaces. However, under electrical code 400.8, flexible cords and cables are not permitted to be dropped from a bar joist.
Suzanne Weyn has written many books and she has written this one book called The Bar Code Tattoo. It's a really good book, and if you've already read it, there is a sequel. It's called The Bar Code Rebellion.
Download an app for your smartphone that has a bar code scanner. It will help you check prices when you're at the store and see if you've overpaying. Some bar codes even have extra information and coupon deals written into them when you scan them.