Data input device and Image scanner

Data input device noun - A device that can be used to insert data into a computer or other computational device.

Image scanner and data input device are semantically related. In some cases you can replace phrase "Image scanner" with "Data input device", this phrases are similar.

Image scanner noun - An electronic device that generates a digital representation of an image for data input to a computer.

Data input device and image scanner are semantically related. You can use "Data input device" instead a noun phrase "Image scanner".