A barcode reader (or barcode scanner) is an electronic device used to scan and decode barcodes, which are visual representations of data in the form of lines, dots, or QR codes. It converts the barcode into digital data that a computer system can process.
Retail & Point of Sale (POS) – Used in supermarkets for billing.
Inventory & Warehouse Management – Tracks products and stock levels.
Healthcare – Scans patient wristbands and medication labels.
Library Management – Helps in book check-in and check-out.
Logistics & Shipping – Tracks parcels and shipments.
✅ Fast & Accurate Data Entry – Reduces human errors in manual data entry.
✅ Cost-Effective – Cheaper than RFID systems.
✅ Easy to Use – Simple plug-and-play operation.
✅ Improves Efficiency – Speeds up checkout and inventory tracking.
✅ Works with Existing Systems – Compatible with most databases and software.
❌ Requires Line of Sight – Must be directly aligned with the barcode.
❌ Limited Data Storage – Can only store small amounts of data.
❌ Damaged Barcodes Can’t Be Read – Scratched, faded, or torn barcodes may not scan.
❌ Shorter Range – Unlike RFID, barcode readers need to be close to the barcode.
❌ Limited Functionality – Cannot track items in real-time like RFID.