Computer Science for IGCSE & O level - Hardware (Section 30 - No. 42)
What is one of the features of the barcode system, as it relates to stock?
The number of stock items is increased.
The database is changed.
If it is at or below a pre-defined value, more stock is automatically ordered.
It does not have anything to do with stock.
Explicación
If it drops to a certain amount, the stock is automatically reordered.