client vs electronic computer

client and electronic computer both are nouns.

Word	Noun	Adjective	Verb	Adverb
client	Yes	No	No	No
electronic computer	Yes	No	No	No

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

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

client (noun)	electronic computer (noun)
(computer science) any computer that is hooked up to a computer network	a machine for performing calculations automatically
a person who seeks the advice of a lawyer
someone who pays for goods or services