What is the term for a software computer that runs an operating system and applications, similar to a physical computer?

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The term that refers to a software computer designed to run an operating system and applications, akin to a physical computer, is a virtual machine. A virtual machine (VM) emulates a physical computer's hardware components, allowing multiple virtual machines to run on a single physical server. Each virtual machine operates independently, with its own operating system and applications, giving the appearance of being a separate physical device.

This virtualization allows for efficient resource utilization, as multiple VMs can share the same underlying physical resources, which is a central concept in environments like VMware vSphere. By isolating environments within virtual machines, users can test different software configurations or run multiple applications on a single hardware platform without interference.

The other terms refer to different concepts in virtualization and computing. A hypervisor, for instance, is the software layer that enables the creation and management of virtual machines, but it is not itself a virtual machine. A cloud instance refers to a virtual machine that runs in a cloud computing environment, while a data container typically relates to a technology used for packaging applications and their dependencies to run consistently across different computing environments.