compatible vs data processor

compatible is not a noun while data processor is a noun.

Word	Noun	Adjective	Verb	Adverb
compatible	No	Yes	No	No
data processor	Yes	No	No	No

compatible (noun)	data processor (noun)
	a machine for performing calculations automatically

compatible (adjective)	data processor (adjective)
able to exist and perform in harmonious or agreeable combination
capable of being used with or connected to other devices or components without modification
capable of forming a homogeneous mixture that neither separates nor is altered by chemical interaction