Optimized and hygienic touch screen keyboard for large letter set languages

1) Does QWERTY type keyboard provide optimum performance for every language? 2) Is it suitable for touch-screen devices? In this paper we tried to find out answers to these questions. QWERTY keyboard remained the most common mode of input for a long time. The recent growth of touch screen devices is forcing changes in modern GUIs (Graphical User Interfaces). They stipulate designing new input systems with higher performance, more user friendliness and better usability etc. The common QWERTY type keyboards lack these qualities when deployed on smaller touch screen devices such as smart phones, e-readers, tablet PCs and PDA (Personal Digital Assistant) etc.