The company famous for its contributions to graphical user interfaces (GUIs) is Apple. Apple revolutionized the personal computing experience with the introduction of the Macintosh in 1984, which featured a user-friendly GUI that made computing accessible to the general public. This interface allowed users to interact with the computer using visual icons and point-and-click navigation, setting a standard that many following operating systems adopted. The emphasis on design and usability helped establish Apple as a leader in the tech industry.