information processing system vs microprocessor chip

information processing system and microprocessor chip both are nouns.

Word	Noun	Adjective	Verb	Adverb
information processing system	Yes	No	No	No
microprocessor chip	Yes	No	No	No

information processing system (noun)	microprocessor chip (noun)
a machine for performing calculations automatically	electronic equipment consisting of a small crystal of a silicon semiconductor fabricated to carry out a number of electronic functions in an integrated circuit