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VMs are software systems that function as fully independent computers in a hardware system. They use software called a Hypervisor to separate hardware resources such as memory, CPU and storage. A virtual machine will run a different OS, such as Windows for business applications or Linux for software development.

Virtual systems help reduce the chance of system failure and lets you quickly restore your data back to a earlier point in time. You can also test and deploy either new or older applications in a sandbox, to ensure that they function in the way you expect, without disrupting production.

You can put multiple VMs onto one physical computer, reducing your operating and capital costs. It also eliminates duplicate backup systems and reduces the amount of data that you must keep. Cloud-based VMs permit you to access your data anywhere with an internet connection, eliminating the requirement for storage offsite.

A VM can be used on any hardware that meets your requirements for performance including servers and desktops. The type of Hypervisor you choose to use is a crucial factor since each one has its own pros and cons for small companies. VMware has vSphere and ESX/ESXi, which is a popular choice. It is a enterprise-ready solution that offers enhanced security hosts that are able to be created with up to 128 virtual CPUs and 6 TB of RAM. the ability to access roles, extensive logging and auditing. Microsoft Hyper-V is another popular option. It is less expensive and simpler to manage than vSphere however it has the same capabilities.