What is point-of-sale?

Answer 1

something like this, i think it's a system allowing business transactions to be monitored, and also therein facilitating tasks that would otherwise be time-consuming (if done manually) such as monitoring stock, inventory managing etc..

Addendum: The above describes a point of sale system. In a word, a point of sale system is the cash register - and all the different functions it performs. The term point of sale (without the word system) is the physical location where you process a Customer's transaction.... which is typically, but not always, a cash register. Point of sale is also used to refer to additional "things" that can or should happen upon processing a Customer's transaction. For example, in a clothing store, the employee may suggestive sell some accessories to the Customer purchasing clothes, i.e. earrings, shoes, belt, etc. They may also inform the Customer about specials and promotions, i.e. "Do you have a Macy's credit card", etc. This all happens at the point of sale.

Point of Sale (POS) may be the location in which a retail purchase is finished. It's the purpose where a cost is made by a person towards the vendor as a swap for companies or products. In sale's point the total amount owed from the client would be calculated by the store and supply choices for the client to create cost. The vendor will even usually concern a bill for that deal.