Introduction to Virtualization

Have you ever come across the term virtual machine or “VM” and scratched your head in bewilderment? If so, then you are assuredly in the right place, this article will begin breaking down some higher-level virtualization concepts, leading into more complex virtualization-related topics.

Oracle VirtualBox has emerged as one of the leading type 2 hypervisors on the market. A beginner-friendly user interface, VirtualBox allows users to provision, deploy, and interact with virtual machines through a simple GUI.

VirtualBox can be downloaded for free, but Oracle requires users purchase a license for commercial use.


This article is the primer content for Data Savers LLC’s new series of articles on virtualization. To be strictly technically accurate, the series will be primarily concerned with data storage virtualization and virtual machine data recovery, but for any readers who are eager to learn more about virtual machines, you are in the right place!

We are going to operate under the assumption that anyone who is reading about virtual machines on Data Savers LLC .com is familiar with basic computer terminology (hardware, software, operating system, etc). A majority of our readers will be familiar with those concepts, but if you happen to be the exception to the rule, we suggest heading over to and spending some time exploring the VMware Glossary.

What is a Virtual Machine?

A virtual machine is very similar to the countless physical computers in use around the world. The major difference is that your computers (i.e. smartphone, laptop, desktop, etc). utilize physical hardware to support an operating system, and a virtual machine emulates hardware that is capable of supporting an operating system. This operating system is deployed / controlled by a hypervisor / host machine / virtualization server.

What to Expect from Data Savers LLC’s Virtualization Series?

Examples in series of articles will deploy Linux virtual machines from an Apple laptop running the most recent MacOS Ventura. All of our tests will be conducted with type 2 hypervisors like Oracle VirtualBox or Gnome Boxes.

It would be perfectly normal if the concept of virtualization is still confusing to you after reading this. Many computer science concepts are abstract, and the concepts surrounding virtual machines are no exception. While the Data Savers LLC virtualization series will not be made up of consecutive postings, be sure to check back for more content!