Microsoft's monopolistic position has played a significant role in shaping the development and dominance of graphical user interfaces (GUIs) over text-based interfaces. As a dominant player in the operating system market, Microsoft has been able to set standards and drive the adoption of GUIs through its Windows operating system. By integrating GUI elements such as icons, windows, and menus into Windows, Microsoft made these interfaces more accessible and user-friendly for the average consumer. This move towards GUIs was a strategic decision by Microsoft to differentiate its products and create a more visually appealing user experience, ultimately solidifying its market dominance.