Oracle VirtualBox and VM
From what I am reading it appears Oracle VM VirtualBox is the software that gets installed on my currently existing OS.
This will allow me to execute a number of Virtual OS as guest.
The VirtualBox comes with a number of Operating Systems in which to use to create the guest VM OS template (THE OS STILL NEEDS TO BE INSTALLED).
There are Pre-Built VMs which can be downloaded and when created will provide the guest VM OS along with the Oracle DB and other components.
The VirtualBox only allows for a single VM to run at a time.
Is all the above interpretation of the VirtualBox correct?
The Oracle VM appears to be a more advanced type of VM which runs on an existing host OS.
Is it correct to say the primary difference between the Oracle VM and Oracle VirtualBox is that the Oracle VM will allow for multiple VMs to run concurrently?