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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]
Demonstration Marc Grandjean (1928) A steno machine, stenotype machine, shorthand machine, stenograph or steno writer is a specialized chorded keyboard or typewriter used by stenographers for shorthand use.
Albert Tangora (July 2, 1903 – April 7, 1978) was an American competitive typist who was widely regarded as having the fastest typing speed on a typewriter. [2] Born in Paterson, New Jersey, Tangora began typing in 1916, entering typing contests the following year.
From the 1920s through the 1970s, typing speed (along with shorthand speed) was an important secretarial qualification and typing contests were popular and often publicized by typewriter companies as promotional tools. A less common measure of the speed of a typist, CPM is used to identify the number of characters typed per minute.
When typing on a keyboard, a person should keep the shoulders relaxed with the elbows at the side, with the keyboard and mouse positioned so that reaching is not necessary. The chair height and keyboard tray should be adjusted so that the wrists are straight, and the wrists should not be rested on sharp table edges. [ 20 ]
As of 2019, the average typing speed on a mobile phone was 36.2 wpm with 2.3% uncorrected errors—there were significant correlations with age, level of English proficiency, and number of fingers used to type. [3] Some typists have sustained speeds over 200 wpm for a 15-second typing test with simple English words. [4]
"Three-key" rollover, also called "phantom key blocking" or "phantom key lockout", will only register three keys and ignore all others until one of the three keys is lifted. This is undesirable, especially for fast typing (hitting new keys before the fingers can release previous keys), and games (designed for multiple key presses).
Blackburn's self-claimed peak speed, in 1986, was 212 words per minute. [8] [a] Blackburn was popularly recognized as the "world's fastest typist" [9] [10] and made media appearances to exhibit her typing speed and the Dvorak layout, notably appearing in a 1985 episode of Late Night with David Letterman [9] and in a television commercial for ...