keyboard
n. countable B1 Intermediate Oxford US //ˈkiˌbɔɹd// UK //kˈiːbɔːd// key·board
n. the set of keys you press to type on a computer or play music. You use it to enter text or create sounds.
n. a panel of keys used for inputting data into a computer or for playing a musical instrument. Often used metonymically in music to refer to any electronic piano or synthesizer.
I need a new keyboard for my computer.
The office was quiet except for the constant clicking of a mechanical keyboard.
While the pianist preferred the weighted action of a grand piano, the composer found the versatility of a digital keyboard essential for layering electronic textures.
From key + board.
Usage
In computing, it typically takes the preposition 'on' ('type on a keyboard').