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ISO/IEC 9995 Information technology — Keyboard layouts for text and office systems is an ISO / IEC standard series defining layout principles for computer keyboards. It does not define specific layouts but provides the base for national and industry standards which define such layouts. [1]
A typical 105-key computer keyboard, consisting of sections with different types of keys. A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, navigation keys for moving the text cursor on the screen, function keys and system command keys—such as Esc and Break—for special actions, and often a numeric keypad to ...
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) The extra key is added next to the Enter key to accommodate # ( number sign) and ~ ( tilde) The Alt key to the right of the space bar is replaced by an AltGr key.
The Linotype machine operator enters text on a 90-character keyboard. The machine assembles matrices, or molds for the letter forms, in a line. The assembled line is then cast as a single piece, called a slug, from molten type metal in a process known as hot metal typesetting. The matrices are then returned to the type magazine, to be reused ...
Typing on a laptop keyboard. A computer keyboard is a 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. Replacing early punched cards and paper tape technology, interaction via teleprinter -style keyboards have been the main ...
A steno machine, stenotype machine, shorthand machine, stenograph or steno writer is a specialized chorded keyboard or typewriter used by stenographers for shorthand use. In order to pass the United States Registered Professional Reporter test, a trained court reporter or closed captioner must write speeds of approximately 180, 200, and 225 words per minute (wpm) at very high accuracy in the ...
In general, ergonomic keyboards are designed to keep the user's arms and wrists in a near-neutral position, which means the slant angle (the lateral rotation angle for the keys in each half relative to the axis of the home row in a conventional keyboard) is approximately 10 to 12.5°, the slope (the angle of the keytop surfaces starting from the front edge closer to the user towards the top of ...
The manuals, from the bottom to top are: Choir, Great, Swell, and Solo/Echo. The organ is played with at least one keyboard, with configurations featuring from two to five keyboards being the most common. A keyboard to be played by the hands is called a manual (from the Latin manus, "hand"); an organ with four keyboards is said to have four ...