computer vs computerise

computer is a noun but computerise is not a noun.

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

computer (noun)	computerise (noun)
a machine for performing calculations automatically
an expert at calculation (or at operating calculating machines)

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