That red laser they shoot your food with at the supermarket. There is a barcode on your food and it tells the person who rings you up what it is supposed to cost.
2.
Rowen | December 23rd, 2008 at 10:34 pm
An electronic detector that reads the bar code on almost anything you buy and sends it to a computer which stores the price of the item, then sends the message to the cash register on how much to overcharge you with.
2 Comments for what's barcode scanner?
1. Jimee77 | December 23rd, 2008 at 10:14 pm
That red laser they shoot your food with at the supermarket. There is a barcode on your food and it tells the person who rings you up what it is supposed to cost.
2. Rowen | December 23rd, 2008 at 10:34 pm
An electronic detector that reads the bar code on almost anything you buy and sends it to a computer which stores the price of the item, then sends the message to the cash register on how much to overcharge you with.
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