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A virtual machine (VM) is an emulated computer system that runs on top of a physical host machine. It appears as a real computer to the user and runs different operating systems such as Windows Linux or macOS. VMs are popular because they permit multiple operating systems to be hosted on one server, resulting in significant cost savings for companies.

Typically the term “VM” refers to a VM is typically a “guest” on a host computer which has hardware resources like processors, memory and hard disk drives. This means that businesses can put several VMs on the same host machine. This provides flexibility that allows IT infrastructure to grow or shrink as needed. This flexibility helps IT teams to be less busy working on software updates, as they are able to manage each physical machine instead of having to manage them all.

There are two types of VM Hypervisors: Type 2 and Type 1. Type 1 hypervisors provide more performance since they run directly on the host machine without the requirement for a full-blown operating system. Type 2 hypervisors pass each VM request through the host operating system, which can slow the processing speed and result in additional cost.

Virtual machines can aid in improving IT security and also disaster recovery. Virtual machines are not tied to the physical hardware they run on. This makes it easier to restore a VM in the event of a natural disaster or outage. This can prevent data loss and downtime which could negatively affect your company’s bottom line.

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