fragmentation vs computer science

fragmentation and computer science both are nouns.

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

fragmentation (noun)	computer science (noun)
separating something into fine particles	the branch of engineering science that studies (with the aid of computers) computable processes and structures
the scattering of bomb fragments after the bomb explodes
(computer science) the condition of a file that is broken up and stored in many different locations on a magnetic disk
the disintegration of social norms governing behavior and thought and social relationships