operating system

https://www.wikidata.org/wiki/operatingsystem

Allows Extra Properties:

Each Of:

Property	Type	Cardinality
instance of	operating system	1 - 1
named after		0 - ∞
developer		0 - ∞
programming language		0 - ∞
inception		0 - 1
official name		0 - ∞
influenced by		0 - ∞
official website		0 - ∞