IoT in manufacturing is often referred to as Industrial IoT and has many uses across industries. IoT used in manufacturing utilizes automation and optimization for production, management, maintenance, and control. It paves the way to create new models for customer service and revenue. For example, the Industrial Internet of Things focuses on generating operational efficiency, production controls, etc., for optimum performance. Retailers or shop owners use QR codes and barcode readers to identify, categorize, and distribute products, and accordingly improve performance and time efficiency.