computer science vs nonparallel

computer science is a noun but nonparallel is not a noun.

Word	Noun	Adjective	Verb	Adverb
computer science	Yes	No	No	No
nonparallel	No	Yes	No	No

computer science (noun)	nonparallel (noun)
the branch of engineering science that studies (with the aid of computers) computable processes and structures

computer science (adjective)	nonparallel (adjective)
	of or relating to the sequential performance of multiple operations
	(of e.g. lines or paths) not parallel; converging