computer memory vs hardware

computer memory and hardware both are nouns.

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

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

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

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

computer memory (noun)	hardware (noun)
an electronic memory device	(computer science) the mechanical, magnetic, electronic, and electrical components making up a computer system
	major items of military weaponry (as tanks or missile)
	instrumentalities (tools or implements) made of metal