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.
However, if youâre using a USB keyboard or mouse, you can plug the keyboard or mouse into any USB port. Some USB keyboards and mice come with a tiny adapter, designed to convert the USB port into a keyboard or mouse port connector. Donât plug the keyboard or mouse into their ports while the computer is turned on.