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.
Microsoft USB Wireless Optical Mouse. To install the driver for Microsoft USB Wireless Optical Mouse, one would first be needed to download its file from any resourceful site and then save it in the computer and then unzip. Next, Connect the Microsoft USB Wireless Optical Mouse to the PC.