Grammar improvements: However, the first application area of bar code was not supermarket or grocery but railroads.
The,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The first application of theanty was the first to use theanty system.
The first application ofanty was theanty system.
The second application was theanty system.
The third application was theanty system.
The fourth application was theanty system.
The fifth application was theanty system.
The sixth application was theanty system.
The seventh application was theanty system.