Northern Ireland is the smallest of the four countries of the United Kingdom in terms of both area and population, containing 2.9% of the total population and 5.7% of the total area of the United Kingdom.
If you are using a wireless mouse with a USB connector and a PS/2 keyboard, verify that the USB mouse is plugged in a USB port on the computer and that the purple keyboard PS/2 plug is connected to the purple PS/2 port on the computer.
The USB specification defines support for low power devices -- devices, such as mice, keyboards and joysticks, that draw less than 100 milliamps of electric current from the USB power line -- and one of the low power mode features is called USB Selective Suspend.