computer keyboard vs keypad

computer keyboard and keypad both are nouns.

Word	Noun	Adjective	Verb	Adverb
computer keyboard	Yes	No	No	No
keypad	Yes	No	No	No

As nouns, computer keyboard and keypad are synonyms defined as:

computer keyboard and keypad: a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard

computer keyboard (noun)	keypad (noun)
a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard	a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard