backup file vs computer file

backup file and computer file both are nouns.

Word	Noun	Adjective	Verb	Adverb
backup file	Yes	No	No	No
computer file	Yes	No	No	No

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

backup file: (computer science) a computer file dedicated to storing and updating computer backups
computer file: (computer science) a file maintained in computer-readable form

backup file (noun)	computer file (noun)
(computer science) a computer file dedicated to storing and updating computer backups	(computer science) a file maintained in computer-readable form