The WheelMouse Serial driver is specifically designed for a serial wheel mouse, a type of mouse that connects to the computer via a serial port (COM port), rather than through USB or PS/2 connections. The "wheel" refers to the scroll wheel functionality of the mouse, which allows users to scroll through content on their screens.
In the context of a Serial WheelMouse, the driver enables the serial mouse to function correctly on a Windows system, providing full support for mouse movements, clicking, and the scroll wheel.