The No. 1 Question Everyone Working in retail systems Should Know How to Answer

https://www.goodreads.com/topic/show/19903880-point-of-sale-explained-in-fewer-than-140-characters

An EPOS system consists of a quantity of your company data. It's difficult to find an EPOS system that meets all your requirements in the place. You can think about an EPOS system which may address about 95 percent