three-row keyboard
1Keyboard technology — Keyboard construction, in four layers, of a typical notebook computer keyboard There are many types of keyboards, usually differentiated by the switch technology employed in their operation. Keyboards are defined by the number (usually about… …
2keyboard — The 20 key, two row, piano type keyboard on the multiposition letter sorting machine. The operator presses one, two, three, or four keys to represent one , two , three , or four digit numbers sequentially …
3Keyboard layout — QWERTY keyboard on a laptop. A keyboard layout is any specific mechanical, visual, or functional arrangement of the keys, legends, or key–meaning associations (respectively) of a computer, typewriter, or other typographic keyboard. Mechanical… …
4keyboard instrument — ▪ music Introduction any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …
5Keyboard (computing) — In computing, a keyboard is an input device partially modelled after the typewriter keyboard which uses an arrangement of buttons, or keys which act as electronic switches. A keyboard typically has characters engraved or printed on the keys, and… …
6Dvorak Simplified Keyboard — The modern Dvorak Simplified Keyboard (US layout) Typing a text excerpt at 115 WPM with the Canadian French Dvorak keyboard layout. The Dvorak Simplified Keyboard is a k …
7Chorded keyboard — 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… …
8Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …
9Maltron keyboard — The Maltron keyboard is an ergonomically designed computer keyboard that was invented by Lilian Malt (thus the name) and Stephen Hobday in the 1970s.cite book|title=Mothers and Daughters of Invention: Notes for a Revised History of… …
10Apple Keyboard — Current Apple Wireless Keyboard Developer Apple Inc. Release date 1983 to present Website …
