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https://qa.answers.com/games-qa/How_did_the_cashier_scan_and_calculate_your_grocery_items

How did the cashier scan and calculate your grocery items? - Answers

Everything the store sells - is stored on a computer - along with the price. The bar-code on the item is unique - in that (for example) all identically-sized tins of carrots from the same supplier have the same bar-code. When the tin is scanned, the computer interprets the bar-code and adds the item to your bill. It also prints the item price.



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How did the cashier scan and calculate your grocery items? - Answers

https://qa.answers.com/games-qa/How_did_the_cashier_scan_and_calculate_your_grocery_items

Everything the store sells - is stored on a computer - along with the price. The bar-code on the item is unique - in that (for example) all identically-sized tins of carrots from the same supplier have the same bar-code. When the tin is scanned, the computer interprets the bar-code and adds the item to your bill. It also prints the item price.



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https://qa.answers.com/games-qa/How_did_the_cashier_scan_and_calculate_your_grocery_items

How did the cashier scan and calculate your grocery items? - Answers

Everything the store sells - is stored on a computer - along with the price. The bar-code on the item is unique - in that (for example) all identically-sized tins of carrots from the same supplier have the same bar-code. When the tin is scanned, the computer interprets the bar-code and adds the item to your bill. It also prints the item price.

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      Everything the store sells - is stored on a computer - along with the price. The bar-code on the item is unique - in that (for example) all identically-sized tins of carrots from the same supplier have the same bar-code. When the tin is scanned, the computer interprets the bar-code and adds the item to your bill. It also prints the item price.

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