With roots tracing back to the early 1900s, Rockwell Automation is the successor to Rockwell International, which spun off its avionics segment in 2001. It is a pure-play industrial automation company that operates through three segments. Its largest segment by revenue, intelligent devices, sells factory floor-level devices such as motors, drives, sensors, relays, and actuators. Its software & control segment sells visualization, simulation, and human-machine interface software and control products such as programmable controllers, computers, and operator terminals. Its smallest segment, lifecycle services, offers digital consulting, engineered-to-order services, and other outsourced services such as remote monitoring, cybersecurity, and asset and plant maintenance and optimization.