Assertion: v operating system | /r/HasProperty | written v-system
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The V operating system (sometimes written V-System) is a discontinued microkernel operating system that was developed by faculty and students in the distributed systems group at Stanford University from 1981 to 1988, led by Professors David Cheriton and Keith A. Lantz.