Decades ago, OS virtualization was built into various Unix operating systems, and it migrated into the Linux world in the mid-2000s. Microsoft also built in containers in Windows Server 2016.
If you want to install the Debian Linux distro on ... Once you have that, create a virtual machine suitable for installing Debian and then install the operating system on it.
For example, Parallels and VMware are used to run Windows and Linux on a Mac (see Parallels and VMware). (3) A virtual machine (VM) is an operating system plus one or more apps running in an ...