computerise vs computer science

computerise is not a noun while computer science is a noun.

Word	Noun	Adjective	Verb	Adverb
computerise	No	No	Yes	No
computer science	Yes	No	No	No

computerise (noun)	computer science (noun)
	the branch of engineering science that studies (with the aid of computers) computable processes and structures

computerise (verb)	computer science (verb)
control a function, process, or creation by a computer
store in a computer
provide with computers