disk cache vs electronic computer

disk cache and electronic computer both are nouns.

Word	Noun	Adjective	Verb	Adverb
disk cache	Yes	No	No	No
electronic computer	Yes	No	No	No

disk cache (noun)	electronic computer (noun)
a cache that stores copies of frequently used disk sectors in random access memory (RAM) so they can be read without accessing the slower disk	a machine for performing calculations automatically