peripheral vs computing machine

peripheral and computing machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
peripheral	Yes	Yes	No	No
computing machine	Yes	No	No	No

peripheral (noun)	computing machine (noun)
electronic equipment external to the circuit board that contains the CPU of a computer	a machine for performing calculations automatically

peripheral (adjective)	computing machine (adjective)
on or near an edge or constituting an outer boundary; the outer area
related to the key issue but not of central importance