keyboard


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keyboard

1. 
a. a complete set of keys, usually hand-operated, as on a piano, organ, typewriter, or typesetting machine
b. (as modifier): a keyboard instrument
2. a musical instrument, esp an electronic one, played by means of a keyboard
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Keyboard

 

(1) In musical instruments, the levers and keys arranged in a specific order; one of the main parts of a keyboard mechanism. It normally consists of keys, a frame, and middle (axial) and forward (guide) pins. It was first used in the 12th century in organs, which usually had a foot keyboard (pedals) in addition to the manuals. In reed keyboard instruments, such as the accordion, the keyboard consists of a row of buttons on fingerboards and on the body itself. In wind instruments the term is sometimes used to designate the valve mechanism.

(2) The keys on any mechanism (a typewriter, calculator, and so on).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

keyboard

[′kē‚bȯrd]
(engineering)
A set of keys or control levers having a systematic arrangement and used to operate a machine or other piece of equipment such as a typewriter, typesetter, processing unit of a computer, or piano.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

keyboard

(hardware)
A hardware device consisting of a number of mechanical buttons (keys) which the user presses to input characters to a computer.

Keyboards were originally part of terminals which were separate peripheral devices that performed both input and output and communicated with the computer via a serial line. Today a keyboard is more likely to be connected more directly to the processor, allowing the processor to scan it and detect which key or keys are currently pressed. Pressing a key sends a low-level key code to the keyboard input driver routine which translates this to one or more characters or special actions.

Keyboards vary in the keys they have, most have keys to generate the ASCII character set as well as various function keys and special purpose keys, e.g. reset or volume control.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

keyboard

There are numerous entries for the types of keyboards used with computers and mobile devices in this encyclopedia, as follows:
Major CategoriesSubcategoriesModels computer keyboard PC keyboard PC/XT keyboard AT keyboard Enhanced keyboard Windows keyboard smartphone keyboard cellphone keyboard virtual keyboard KALQ keyboard SwypeKeyboard Layouts QWERTY keyboard Dvorak keyboard AZERTY keyboard Internet keyboard POS keyboard programmable keyboard thumb keyboardKeyboard Architectures physical keyboard chiclet keyboard mechanical keyboard membrane keyboard portable keyboard chorded keyboard ergonomic keyboard premium keyboardKeyboard Models Das Keyboard Avant Stellar keyboard Bat keyboard Maltron keyboard OmniKey keyboard Butterfly keyboard
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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