本文介绍了虚拟机的概念及其工作原理。虚拟机是一种软件计算机，它如同物理计算机一样运行操作系统和应用程序。虚拟机由一组规范和配置文件组成，并通过宿主机的物理资源进行支持。相比物理硬件，虚拟机具有更高的便携性、安全性和易于管理的特点。
What Is a Virtual Machine?
A virtual machine is a software computer that, like a physical computer, runs an operating system and applications. The virtual machine consists of a set of specification and configuration files and is backed by the physical resources of a host. Every virtual machine has virtual devices that provide the same functionality as physical hardware are more portable, more secure, and easier to manage.
A virtual machine consists of several files that are stored on a storage device. The key files are the configuration file, virtual disk file, NVRAM setting file, and log file. You configure virtual machine settings through the vSphere Web Client, one of the vSphere command-line interfaces (PowerCLI, vCLI) or the vSphere Web Services SDK.
Virtual Machine Files
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