typewriter keyboard vs keyboard

typewriter keyboard and keyboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
typewriter keyboard	Yes	No	No	No
keyboard	Yes	No	No	No

As nouns, keyboard is a hypernym of typewriter keyboard; that is, keyboard is a word with a broader meaning than typewriter keyboard:

typewriter keyboard: a keyboard for manually entering characters to be printed
keyboard: device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like

typewriter keyboard (noun)	keyboard (noun)
a keyboard for manually entering characters to be printed	holder consisting of an arrangement of hooks on which keys or locks can be hung
	device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like