computer guru vs expert

computer guru and expert both are nouns.

Word	Noun	Adjective	Verb	Adverb
computer guru	Yes	No	No	No
expert	Yes	Yes	No	No

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

Other hypernyms of computer guru include computer user.

computer guru (noun)	expert (noun)
an authority on computers and computing	a person with special knowledge or ability who performs skillfully

computer guru (adjective)	expert (adjective)
	having or showing knowledge and skill and aptitude
	of or relating to or requiring special knowledge to be understood