Can anyone help on how to detect if a keyboard is disconnected from the computer. I want to detect keyboard so that I can automatically send a "PAUSE" command to a game I am playing with.  One time a keyboard was disconnected and the game still played on until game over. Please help.

Welcome to Developer Fusion! :)

This might be possible for a USB keyboard, but I'm pretty sure there's no way of doing this using a PS/2 keyboard, as that port was never designed to be "hot swappable".

From wikipedia "PS/2 ports are designed to connect the digital I/O lines of the microcontroller in the external device directly to the digital lines of the microcontroller on the motherboard. They are not designed to be hot swappable. Hot swapping PS/2 devices usually does not cause damage due to the fact that more modern microcontrollers tend to have more robust I/O lines built into them which are harder to damage; however, hot swapping can still potentially cause damage on older machines, or machines with less robust port implementations."

Sorry I can't be of more help!