A virtual machine (VM) is an computer system that is emulated on top of a physical host machine. It appears to the user as a real computer system and is able to run various operating systems, such as Windows, Linux or macOS. VMs are well-known because they allow multiple operating systems to run on the same computer, which could save businesses lots of money.
Typically typically, each VM is the “guest” of a host machine that provides hardware resources such as processors, memory, hard disk drives and network connections. Therefore, businesses can install multiple VMs on the same host machine. This provides the ability for scalability, which allows IT infrastructure to grow or shrink as needed. This flexibility helps IT teams to spend less time updating software, since they are able to manage each physical machine instead of having to manage them all.
There IT infrastructure: the backbone of modern enterprises are two kinds of VM Hypervisors: Type 2 and Type 1. Type 1 hypervisors offer better performance because they operate directly on the host machine, without the need for a full-blown operating system. Type 2 hypervisors redirect each VM request to the host operating system. This can reduce processing speeds and cause additional burdens.
In addition to scalability virtual machines can help improve IT security and disaster recovery. Since virtual environments are independent of the hardware that runs it that makes it easier to restore from a VM than a physical machine in case of a failure or natural catastrophe. This can help prevent data loss and downtime which can directly impact the bottom line of your business.