A Point of Sale System (POS) is commonly known as the cash register or charging terminal. It is usually associated with a box (the place where the charge is made) from any establishment.However, in a stricter term, POS consists of software and hardware that allows you to charge. So the set of these two elements is necessary for it, called point of sale and not simply refers to a devic... https://www.apsense.com/article/what-is-a-pointofsale-system.html