Final answer:
Steve Wozniak and Steve Jobs continued to work together after co-founding Apple Computer, contributing to the development of the Apple II and pioneering the Macintosh, which featured a graphical user interface.
Step-by-step explanation:
After co-founding Apple Computer company, Steve Jobs and Stephen Wozniak continued to work together on advancing personal computer technology. Following the establishment of Apple, they achieved significant milestones, such as the introduction of the Apple II, which solidified Apple's presence in the computer market.
Additionally, Apple's groundbreaking Macintosh computer in 1984 set a new standard with its graphical user interface, shaping the way personal computers are used and paving the way for future innovation in the industry. Despite their partnership, their paths eventually diverged, with Wozniak stepping away from Apple's day-to-day operations in the late 1980s, although he remained a shareholder and employee, and Jobs leaving to form NeXT Computer and later returning to Apple in the 1990s.