Using a Computer Inside Your Computer
Virtualization is a simulation, an imitation of the real deal. In computers virtualization creates an abstraction layer over the physical hardware. With this, we can run multiple virtual computers, operating systems, and applications on a single computer. Companies benefit quite massively from this act, as one can explore a single server, and run multiple devices which is different from having multiple computers for multiple tasks.
The down side, because we use certain applications that enable us to run different programs, and operating systems on a single computer if our device was to shut down or face a critical problem we would lose every active session, at least for as long as the device is offline. Because in the end it is a single device running a number of programs posing as different computers using the same hardware.
Common terms in the world of Virtual Machines
When it comes to Virtualization, and Virtual Machines there are certain terms that one should be familiar with. One of the best ways to learn about a new technology is to familiarize yourself with the most common terms like the ones that follow.
Host — The main computer, the physical device, the one responsible for every program that we’re able to run.
Clone — Refers to copying a certain VM so that a new one is created.
VM Snapshot — This allows us to capture a state of a VM, to revert a VM to a previous state. The user can undo changes to a Virtual Machine that are no longer wanted.
Virtual networks — A network provided by virtual switches.
Virtual Disks — Resembles and behaves like a physical drive. In some cases you choose whether you want a dynamic drive or static.
VM Guest OS — The operating system that runs on a Virtual Machine.
Virtual Desktop — A virtual machine that is running on a Desktop OS like Windows 10 or Ubuntu.
Virtual Server — A computer that is running an OS such as Windows server or Red hat enterprise Linux server.
Virtual Machine — A set of virtual hardware devices that make up a virtual computer.
If a single computer can do the work of two or more computers we suffer less from operating costs. Worst case scenario, we can either copy the VM or use it on a different device. We can move virtual machines for as long as we save and copy the necessary files. Are you ready to create your first virtual machine?