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.
To improve the performance of the wireless keyboard and mouse, use the following suggestions: 1  If the mouse or keyboard does not work after replacing the batteries, manually synchronize the devices. 2  Make sure the keyboard and mouse are within 100 cm (39 in) of the computer and on the same level surface.