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In page QWERTY:

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Comparisons have been made between Dvorak, Colemak, QWERTY, and other keyboard input systems, namely stenotype or its electronic implementations. However, stenotype is a fundamentally different system, which relies on phonetics and simultaneous key presses or chords. Although Shorthand (or 'stenography') has long been known as a faster and more accurate typing system,[citation needed] adoption has been limited, possibly due to the historically high cost of equipment, steeper initial learning curve, and low awareness of the benefits within primary education and in the general public.[citation needed]