finding keyboard connected to client system using jquery

finding keyboard connected to client system using jquery

hi all
i have a requirement in which i need to find out whether the system in which the web page is running has a keybroad or not. as it may also be used for touch screens.

so my question is. is there a way to access user system information to detect whether it has a keyboard or not or is there any other way or logic by which we can find out the touch screen monitors( not smartphones).