digital scanner vs input device

digital scanner and input device both are nouns.

Word	Noun	Adjective	Verb	Adverb
digital scanner	Yes	No	No	No
input device	Yes	No	No	No

As nouns, input device is a hypernym of digital scanner; that is, input device is a word with a broader meaning than digital scanner:

digital scanner: an electronic device that generates a digital representation of an image for data input to a computer
input device: a device that can be used to insert data into a computer or other computational device

Other hypernyms of digital scanner include data input device, electronic device.

digital scanner (noun)	input device (noun)
an electronic device that generates a digital representation of an image for data input to a computer	a device that can be used to insert data into a computer or other computational device