cassette tape vs magnetic tape

cassette tape and magnetic tape both are nouns.

Word	Noun	Adjective	Verb	Adverb
cassette tape	Yes	No	No	No
magnetic tape	Yes	No	No	No

As nouns, magnetic tape is a hypernym of cassette tape; that is, magnetic tape is a word with a broader meaning than cassette tape:

cassette tape: a cassette that contains magnetic tape
magnetic tape: memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information

Other hypernyms of cassette tape include mag tape, tape.

cassette tape (noun)	magnetic tape (noun)
a cassette that contains magnetic tape	memory device consisting of a long thin plastic strip coated with iron oxide; used to record audio or video signals or to store computer information