information processing system vs silicon chip

information processing system and silicon chip both are nouns.

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

information processing system (noun)	silicon 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