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.
Unpackage the wireless products from the box and remove any protective material. However, do not be tempted to fit batteries to the keyboard or the mouse at this stage. Turn the computer off that the products will be used with and unplug the wired keyboard or the mouse or both, if necessary. Most keyboards and mice are connected to computers via USB ports these days, but older systems may have a DIN type of socket known as a PS/2 port.