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A virtual machine (VM) is an computer system that is emulated and runs on the top of a physical host machine. It appears as a genuine computer to the user and can run different operating systems, such as Windows Linux or macOS. Virtual machines are popular because they allow for multiple environments to be run on one computer, which can save businesses a lot of money.
Typically an VM is generally a “guest” on host computers that provide hardware resources, such as processors memory, and hard disk drives. This allows businesses to accommodate multiple VMs on the same host computer and allows IT infrastructures to grow and shrink according to the needs. This flexibility helps IT teams to save time on updating software since they can manage each physical machine, instead of having to manage them all.
There are two types of VM Hypervisors that are Type 2 and Type 1. Type 1 hypervisors are more performant because they run directly on a host machine without the need for a full-blown OS. Type 2 hypervisors route each VM request through the host operating system, which could slow down processing speed and add additional costs.
In addition to scalability, virtual machines also help enhance IT security and disaster recovery. Virtual machines are independent of 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 help prevent data loss and downtime which could directly impact your company’s bottom line.
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