Different Input Systems for Different Devices

We live in the age of touch screen gadgets. The future trends also show promising growth for them. Currently available input systems developed for standard PCs have room for improvement in efficiency, visibility and usability etc. particularly for Perso-Arabic scripts e.g., Urdu. In addition, small touch screen devices expose users to health hazards. We put forth Ergonomics in prime focus to reduce potential health hazards. We proposed distinct touch-screen keypads for different devices that are practically applicable for fast, correct and easy composing. We computed the estimated input time and tapcounts using automated procedure to compare contemporary keypads with our proposed keypads. Our experiments on a considerably large Urdu corpus reveal results of ample significance. Our optimization technique for arrangement of alphabets and unique interface for data input is extendable and equally applicable to other natural languages.