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Electric keyboards began with applying electric sound technology. The first was the Denis d'or stringed instrument, [ 5 ] made by Václav Prokop Diviš in 1748, [ 6 ] with 700 electrified strings. In 1760, Jean Baptiste Thillaie de Laborde introduced the clavecin électrique , an electrically activated keyboard without sound creation.
The asterisk (/ ˈ æ s t ər ɪ s k / *), from Late Latin asteriscus, from Ancient Greek ἀστερίσκος, asteriskos, "little star", [1] [2] is a typographical symbol. It is so called because it resembles a conventional image of a heraldic star.
A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix.
A Wurlitzer model 112 electric piano with a guitar amplifier.. An electric piano is a musical instrument that has a piano-style musical keyboard, where sound is produced by means of mechanical hammers striking metal strings or reeds or wire tines, which leads to vibrations which are then converted into electrical signals by pickups (either magnetic, electrostatic, or piezoelectric).
Typing on a laptop keyboard. A computer keyboard is a built-in or peripheral input device modeled after the typewriter keyboard [1] [2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches.
A telephone keypad using the ITU E.161 standard.. A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number.
A keyboard with Num Lock turned on as indicated by a LED. Num Lock or Number Lock (⇭) is a key on the numeric keypad of most computer keyboards.It is a lock key, like Caps Lock and Scroll Lock.
Letter frequency in Icelandic. The letters Å/å, Ä/ä, Ÿ/ÿ, Ü/ü, Ï/ï, and Ë/ë can be produced with the Icelandic keyboard by first pressing the ° or ⇧ Shift+° (for ¨) dead key located below the Esc key, and then the corresponding letter (i.e. ° followed by A yields å).