background vs computer science

background and computer science both are nouns.

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

background (noun)	computer science (noun)
scenery hung at back of stage	the branch of engineering science that studies (with the aid of computers) computable processes and structures
(computer science) the area of the screen in graphical user interfaces against which icons and windows appear
a person's social heritage: previous experience or training
the part of a scene (or picture) that lies behind objects in the foreground
information that is essential to understanding a situation or problem
extraneous signals that can be confused with the phenomenon to be observed or measured
relatively unimportant or inconspicuous accompanying situation
the state of the environment in which a situation exists

background (verb)	computer science (verb)
understate the importance or quality of