action mechanism, action - the operating part that transmits power to a mechanism; "the piano had a very stiff action"

computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automatically

computer keyboard, keypad - a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard

device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"

key - a lever that actuates a mechanism when depressed

pipe organ, organ - wind instrument whose sound is produced by means of pipes arranged in sets supplied with air from a bellows and controlled from a large complex musical keyboard

forte-piano, piano, pianoforte - a stringed instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds

clavier, piano keyboard, fingerboard - a bank of keys on a musical instrument

terminal - electronic equipment consisting of a device providing access to a computer; has a keyboard and display

typesetting machine - a printer that sets textual material in type

typewriter - hand-operated character printer for printing written messages one character at a time

typewriter keyboard - a keyboard for manually entering characters to be printed

holder - a holding device; "a towel holder"