guest vs computing machine

guest and computing machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
guest	Yes	No	No	No
computing machine	Yes	No	No	No

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

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

guest (noun)	computing machine (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
a customer of a hotel or restaurant etc.