The loT is changing operations management. Bar code scanners and RFID chips have been in use for years to track products in the supply chain and improve customer response Electronic screwdrivers with embedded sensors help workers screw in fasteners with the right torque. Part bins have built-in scales that can alert workers if they grab the wrong part. Sensors in manufacturing equipment can automatically adjust ingredients, temperature, and pressure in chemical processes, thus improving product quality. They can be used to adjust the position of physical objects as they move down an assembly line so that they are positioned correctly and accurately for processing. Services will also be affected; tech experts make over 4 million house calls each year to help customers install connected devices. Companies that sell IoT products and have the expertise to support them will have an advantage over their competitors such as Amazon and Walmart. The IoT will require companies to overhaul their information technology (IT), supply-chain, and logistics systems.