What is virtualization? What is the cloud? What does analytics refer to?
Virtualization refers to moving one or more controllers or computing devices onto a larger computer (server) so that each may run independently within the compute resource, but appear to outside devices and systems as if they are independent controllers or computers.
Cloud refers to compute resources usually located off-site with applications and storage that can complement local controllers and compute resources.
Analytics usually refers to software, a usable collection of code and algorithms, designed to examine trends and patterns often not otherwise visible to humans. Such software can operate by comparing existing operations to historical data sets. Such analysis can happen offline from a process or inline with process controls and automation and can send alarms or actuate changes if so enabled.