When shopping in the supermarket, Arianna notices that the cashier swipes each of the boxes of cookies she is buying over a scanning device and the scanner reads what is printed on the box, the price is recorded and added to her bill. The boxes of cookies have _________ that make this possible,
A) telemetry
B) bar codes
C) RFID tags
D) mobile wallets

Question

Quizplus · Accepted Answer

Bar codes are used on product packaging to encode information such as price and product identification, which can be read by scanning devices at checkout counters in supermarkets. This allows for efficient and accurate billing.

When Shopping in the Supermarket, Arianna Notices That the Cashier