Computer keyboard and Data input device

Computer keyboard noun - A keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard.

Data input device and computer keyboard are semantically related. In some cases you can use "Data input device" instead a noun phrase "Computer keyboard".

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

Computer keyboard and data input device are semantically related. Sometimes you can replace phrase "Computer keyboard" with "Data input device", this phrases are similar.