computing vs open-source

computing is a noun but open-source is not a noun.

Word	Noun	Adjective	Verb	Adverb
computing	Yes	No	No	No
open-source	No	Yes	No	No

computing (noun)	open-source (noun)
the procedure of calculating; determining something by mathematical or logical methods
the branch of engineering science that studies (with the aid of computers) computable processes and structures

computing (adjective)	open-source (adjective)
	of or relating to or being computer software for which the source code is freely available