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Questions and Answers
Which technology is especially useful in supermarkets?
Which technology is especially useful in supermarkets?
- Cash registers
- Scanners
- Bar codes (correct)
- Grocery stores
What is a bar code?
What is a bar code?
- A printed pattern of black and white lines (correct)
- A type of cash register
- A type of scanner
- A computer memory
Why were bar codes invented?
Why were bar codes invented?
- To add up the cost of purchases
- To help customers wait in long lines
- To help grocery stores speed up the checkout process (correct)
- To search the store computer's memory
What does a scanner do with a bar code?
What does a scanner do with a bar code?
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What does a supermarket computer system have in its memory?
What does a supermarket computer system have in its memory?
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