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Mechanical keyboards (or mechanical-switch keyboards) are computer keyboards which have an individual switch for each key. The following table is a compilation list of mechanical keyboard models, brands, and series:
The Model F was a series of computer keyboards produced mainly from 1981–1985 and in reduced volume until 1994 by IBM and later Lexmark. [1] Its mechanical-key design consisted of a buckling spring over a capacitive PCB, similar to the later Model M keyboard that used a membrane in place of the PCB.
Modern keyboard models contain a set number of total keys according to their given standard, described as 101, 104, 105, etc. and sold as "Full-size" keyboards. [8] Modern keyboards matching US conventions typically have 104 keys while the 105 key layout is the norm in the rest of the world.
Full n-key rollover is required for stenotype, which relies on chording to input text far faster than conventional typing methods, allowing it to keep pace with the speed of human speech. Most music keyboards use isolation diodes in their keyboard matrix to implement full n-key rollover, making them immune to both key ghosting and key jamming. [4]
The layouts are also used by people with full use of two hands, who prefer having one hand free while they type with the other. The left-handed Dvorak and right-handed Dvorak keyboard layouts are mostly each other's mirror image, with the exception of some punctuation keys, some of the less-used letters, and the 'wide keys' (Enter, Shift, etc.).
The Vulcan line was Roccat's flagship series of keyboards. [11] For the series, Roccat developed their own switches called Titan Switch Optical in cooperation with TTC. [ 12 ] A beam of light that hits an optical signal when a button is pressed and thereby records an input replaces the conventional physical contact within a button. [ 13 ]
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 ...
A keyer is an electronic device used for signaling by hand, by way of pressing one or more switches. [1] The technical term keyer has two very similar meanings, which are nonetheless distinct: One for telegraphy and the other for accessory devices built for computer-human communication: