To my understanding, a virtual machine (VM) allows a user to be able to dedicate space and memory from hardware to run emulated software/operating systems in an environment.
What I don't understand is how do these servers persist. If the hardware that hosts the VM needs to reset, how is the VM saved. Does a program (or a service) have to be running at all times to keep the VM alive?
I would love to learn more about VM and their advantages and how you would set up a network utilizing them.
If you have any information to share, please help me learn more. (or correct me if I've misunderstood)