[Solved] What is vm in virtualBox used for [closed]

a VM is a virtual machine. In simple words, it is virtual hardware(emulator) to run your virtual devices. from Wikipedia: In computing, a virtual machine (VM) is an emulation of a particular computer system. Virtual machines operate based on the computer architecture and functions of a real or hypothetical computer, and their implementations may involve … Read more

[Solved] Run second os in docker [closed]

Docker does not has an “OS” in its containers. In simple terms, a docker container image just has a kind of filesystem snapshot of the linux-image the container image is dependent on. All Linux distributions are based on the same kernel, so you could, for example, run a filesystem based on Ubuntu in a container. … Read more