Multiple functions of adding up the bill and deducting the purchased items from inventory are readily programmed into the supermarket's computer system,with which the _____ communicate.
A)optical scanners
B)bar codes
C)universal product codes (UPC)
D)robots

Question

Quizplus · Accepted Answer

Optical scanners communicate with the supermarket's computer system to add up the bill and deduct purchased items from inventory by reading information, such as bar codes or universal product codes (UPC), from the products.

Multiple Functions of Adding Up the Bill and Deducting the Purchased