Which technology assists in tracking inventory loss due to sales and includes devices like barcode scanners?

The point-of-sale (POS) system is a critical technology in retail that not only facilitates transactions but also plays a key role in inventory management. When items are scanned at checkout using barcode scanners, the POS system automatically updates inventory levels in real time. This immediate tracking helps retailers monitor inventory loss, whether from sales, theft, or other discrepancies.

The ability to instantly record transactions and deduct sold items from inventory allows for accurate visibility into stock levels, which is vital for effective inventory management and loss prevention. In contrast, other methods like periodic or physical inventory rely on assessments at set intervals, which may not capture real-time changes effectively. Perpetual inventory systems also track ongoing inventory changes, but they typically involve more extensive tracking technologies beyond just the point of sale. Thus, the point-of-sale system directly links sales transactions with inventory tracking, making it the suitable answer.