What do pianos and computers have in common? They both have keyboards! A computer keyboard has numbers and letters, but a piano keyboard has musical notes. The keyboard is the part that you press with your fingers.
Besides the rockin’ keyboard of a synthesizer, piano, or organ, there is also the computer keyboard. This keyboard is used for typing, with the earliest examples being the keyboards on typewriters. Occasionally, the word keyboard is used as a verb, meaning "to type on keyboard." It’s also, literally, a board with little hooks to hang the other kind of keys on. The musical instrument meaning came first, around 1819.