Dvorak simplified keyboard
The Dvorak Simplified Keyboard (DSK) is the best-known alternative to QWERTY, also known as the American Simplified Keyboard, ASK layout. It was named after its inventor, August Dvorak.
There are also numerous adaptations for languages other than English, and single-handed variants. Dvorak's original layout had the numerals rearranged, but the present-day layout has them in numerical order.
The Dvorak Simplified Keyboard has numerous properties designed to increase typing speed, decrease errors, and increase comfort. The most prominent property involves concentrating the most used English letters in the home row where the fingers rest, thus having 70% of typing done in the home row (compared to 32% in QWERTY).
The Dvorak Simplified Keyboard is available out of the box on most operating systems, making switching through software very easy. "Hardwired" Dvorak keyboards are also available, though only from specialized hardware companies.
Content is from wikipedia.org