Virtual console
It is a feature of some Unix-like operating systems such as BSD , Linux , illumos and UnixWare in which the system console of the computer can be used to switch between multiple virtual consoles to access unrelated user interfaces . 
<triplet> Unix-like <subj> operating system <obj> subclass of <triplet> Linux <subj> Unix-like <obj> implementation of <triplet> UnixWare <subj> Unix-like <obj> instance of