operating system vs package

operating system and package both are nouns.

Word	Noun	Adjective	Verb	Adverb
operating system	Yes	No	No	No
package	Yes	No	Yes	No

As nouns, package is a hypernym of operating system; that is, package is a word with a broader meaning than operating system:

operating system: (computer science) software that controls the execution of computer programs and may provide various services
package: (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory

Other hypernyms of operating system include computer software, software, software package, software program, software system.

operating system (noun)	package (noun)
(computer science) software that controls the execution of computer programs and may provide various services	a wrapped container
	(computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory
	a collection of things wrapped or boxed together

operating system (verb)	package (verb)
	put into a box