This is made possible via software called a hypervisor that runs on one piece of hardware to create and run virtual machines (VM) that contain an operating system, applications, and all required dependencies such as data libraries and configuration files. While hardware advances remain an important aspect of automation’s advance, software virtualization and data communication methodologies, such as the OPC Foundation’s Unified Architecture (OPC UA) and MQTT (message queuing telemetry transport), are increasingly moving to center stage.įor example, through virtualization, multiple operating systems or software environments can run simultaneously on a single piece of hardware, whereas in the past, end users may have needed to invest in separate pieces of hardware for each one.
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