What is Point of Sale (POS)?

The point of sale or point of purchase is the time and place where a retail transaction is completed. At the point of sale, the merchant calculates the amount owed by the customer, indicates that amount, may prepare an invoice for the customer, and indicates the options for the customer to make payment.

-by wikipedia

What is POS Online?

POS Online is a flexible & affordable Point of Sale (POS) software that can help you get your business up and running as quickly as possible.