guest vs computer

guest and computer both are nouns.

Word	Noun	Adjective	Verb	Adverb
guest	Yes	No	No	No
computer	Yes	No	No	No

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

guest: (computer science) any computer that is hooked up to a computer network
computer: a machine for performing calculations automatically

guest (noun)	computer (noun)
(computer science) any computer that is hooked up to a computer network	a machine for performing calculations automatically
a visitor to whom hospitality is extended	an expert at calculation (or at operating calculating machines)
a customer of a hotel or restaurant etc.