Computer Science for IGCSE & O level - Hardware (Section 8 - No. 20)
What happens to the number of stock items after an item is scanned at the checkout?
The number is incremented by one.
The number is reduced by one.
The number stays the same.
The number is updated based on sales data.
Explanation
The text states that the number of stock items in the record is reduced by one each time the barcode is read.
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