keyboard layout designed in 1955 by İhsan Yener

QWERTZ　QWERTY　QZERTY
http://en.wikipedia.org/wiki/Keyboard_layout
Keyboard layout - Wikipedia, the free encyclopedia

Turkish

The Turkish language uses the Roman alphabet, and a dedicated keyboard layout was designed in 1955 by İhsan Yener. During its design, the Turkish Language Academy (TDK) investigated letter frequencies in Turkish and used this statistical basis to design the Turkish-F keyboard. It provides a balanced distribution of typing effort between the hands - 49% for the left hand and 51% for the right.

Besides the Turkish-F keyboard, the QWERTY keyboard is used on most computers in Turkey.

İhsan Yener　1955