Point of Sale (POS) is the location where a transaction occurs in exchange for goods or services. The point of sale often refers to the physical electronic cash register or dedicated POS terminal used for checkout, but the POS is simply the location where the sale is conducted, money changes hands and a receipt is given, which can also occur on a smartphone, tablet, laptop, or mobile POS device when the right hardware and POS software is combined with the mobile device.

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