The general layout of the standard keyboard was designed before the introduction of the mouse. Since number entry was one of the primary functions of the keyboard at that time, having the numeric keypad on the right side made sense. Nowadays, most users use the mouse far more than the numeric keypad, so the keypad now occupies the space where the mouse should be. The Evoluent Mouse-Friendly Keyboard has a more sensible layout with the numeric keypad on the left so your mouse may be much closer on the right.(Patents pending.)
At last – a left handed keyboard using high quality Cherry linear mechanical keyswitches.This keyboard has a full 104 key layout with a standard layout numeric keypad on the left side of the keyboard. The mechanical keyswitches are high quality and offer a light touch which provides a consistent and comfortable feel. Left handed users can finally use their dominant hand when keying in numerical input comfortably.