The company credited with the invention of the graphical user interface (GUI) is Xerox, which developed it at the Palo Alto Research Center (PARC) in the 1970s. Although GUIs gained widespread popularity through products by Apple and Microsoft, the foundational concepts originated at Xerox. This innovation transformed how users interacted with computers, moving from text-based interfaces to intuitive visual environments, making computing more accessible and user-friendly for a broader audience.