As a soft key refers to a key that performs a function of an associated display different functions. In contrast to the hard key functions as the button is not fixed pretend it is by changing the assigned key area of ​​the screen (usually the area of ​​a screen right next to the button or facing her) adjusted dynamically. A soft key that resembles a button, with the difference that a real key is used outside of the screen. Softkeys thus perform a similar function as the mouse for the PC. They are used where alternatives such as a mouse and touch screen for reasons of space, due to an unclean environment or a relatively small screen would be unsuitable, such as measuring instruments, industrial machinery, public devices or mobile phones.

All mobile phones and cordless phones the softkeys directly below the screen, at ATMs usually right and left of the screen.

  • Button
  • Input Device