Computer Science for IGCSE & O level - Hardware (Section 21 - No. 38)
What happens once a barcode has been read and the stock item is found in the database?
The item's price is displayed.
The key field is displayed.
The number of stock items is reduced.
The stock is reordered.
הֶסבֵּר
The process of scanning a barcode involves displaying price and reducing the stock.