storage vs computer hardware

storage and computer hardware both are nouns.

Word	Noun	Adjective	Verb	Adverb
storage	Yes	No	No	No
computer hardware	Yes	No	No	No

As nouns, computer hardware is a hypernym of storage; that is, computer hardware is a word with a broader meaning than storage:

storage: an electronic memory device
computer hardware: (computer science) the mechanical, magnetic, electronic, and electrical components making up a computer system

Other hypernyms of storage include hardware, memory device, storage device.

storage (noun)	computer hardware (noun)
the commercial enterprise of storing goods and materials	(computer science) the mechanical, magnetic, electronic, and electrical components making up a computer system
the act of storing something
depositing in a warehouse
a depository for goods
an electronic memory device
(computer science) the process of storing information in a computer memory or on a magnetic tape or disk