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A Microwriter MW4 (circa 1980). A keyset or chorded keyboard (also called a chorded keyset, chord keyboard or chording keyboard) is a computer input device that allows the user to enter characters or commands formed by pressing several keys together, like playing a "chord" on a piano.
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 UK variant of the Enhanced keyboard commonly used with personal computers designed for Microsoft Windows differs from the US layout as follows: . The UK keyboard has 1 more key than the U.S. keyboard (UK=62, US=61, on the typewriter keys, 102 v 101 including function and other keys, 105 vs 104 on models with Windows keys)
These combinations are intended to be mnemonic and designed to be easy to remember: the circumflex accent (e.g. â) is similar to the free-standing circumflex (^), printed above the 6 key; the diaeresis/umlaut (e.g. ö) is visually similar to the double-quote (") above 2 on the UK keyboard; the tilde (~) is printed on the same key as the #.
8 note main voice polyphony (only 6 with rhythm, only 4 with accompaniment) No ROM pack. PT 180 32 6 Plays songs from Casio ROM Packs. [209] PT 280 32 Plays songs from Casio ROM Packs. Has sampling function (similar to SK-1). [210] PT 380 32 6(3) AA (x5) Only some of the instruments support 6 tone polyphony, most just cut off the first 3 notes ...
For certain uses (e.g., transcription of medical or legal dictation; journalism; writing essays or novels) speech recognition is starting to replace the keyboard. However, the lack of privacy when issuing voice commands and dictation makes this kind of input unsuitable for many environments.
An isomorphic keyboard is a musical input device consisting of a two-dimensional grid of note-controlling elements (such as buttons or keys) on which any given sequence and/or combination of musical intervals has the "same shape" on the keyboard wherever it occurs – within a key, across keys, across octaves, and across tunings.
A telephone keypad using the ITU E.161 standard. Numeric keypad, integrated with a computer keyboard A calculator 1984 flier for projected capacitance keypad. A keypad is a block or pad of buttons set with an arrangement of digits, symbols, or alphabetical letters. Pads mostly containing numbers and used with computers are numeric keypads.