Barcodes are like secret messages on products. They help the computer at the store know exactly what you're buying and how much it costs. Imagine each product has a special number that only the machines can read, that's a barcode! It looks like lines, but it's actually telling the store something very important.
Examples
- A barcode on a candy bar helps the store know how much it costs.
- Your mom scans the barcode at the grocery store to pay for your favorite snack.
- The scanner reads the lines of the barcode like a secret code.
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See also
- How Does a ‘Barcode’ Work and Why Did It Become So Popular?
- How Do Clocks Know the Time?
- How Do Clock Towers Work?
- How Do Algorithms Influence Our Decisions?
- How Do Clocks Know What Time It Is?
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