magnetic disc vs magnetic disk

magnetic disc and magnetic disk both are nouns.

Word	Noun	Adjective	Verb	Adverb
magnetic disc	Yes	No	No	No
magnetic disk	Yes	No	No	No

As nouns, magnetic disc and magnetic disk are synonyms defined as:

magnetic disc and magnetic disk: (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored

Other synonyms of magnetic disc include disc, disk.

magnetic disc (noun)	magnetic disk (noun)
(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored	(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored