Computer isn’t Taking Inputs From Keyboard
Is keyboard connected to computer? Ensure that the keyboard is plugged into the keyboard jack and not into the mouse jack. If the keyboard was unplugged, plug it back in and reboot the computer.
If the keyboard still doesn’t work on boot-up, power down the computer and try to borrow a friend’s known-good keyboard for troubleshooting. Plug the new keyboard up and boot up the computer. If the new keyboard works, the old keyboard is bad and needs to be replaced.
If the known-good keyboard doesn’t work, check your BIOS to make sure it sees the keyboard. It should say, "installed." If the BIOS recognizes the keyboard, then you probably have a bad keyboard port.