walterbyrd sends this excerpt from an article that might make you feel old: "At its annual shareholders' meeting on January 19, 1983, Apple announced two new products that would play a pivotal role in the future of the company: the Apple Lisa, Apple's original GUI-based computer and the precursor to the Macintosh; and the Apple IIe, which represented a natural evolution to the highly successful Apple II computer line. ... The Lisa introduced a completely new paradigm—the mouse-driven graphical user interface—to the world of mainstream personal computers. (Note that the release of the Xerox Star workstation in 1981 marked the commercial debut of the mouse-driven GUI.) The Lisa’s elevated retail price of $9995 at launch (about $23,103 in today’s dollars), slow processor speed (5MHz), and problematic custom disk drives hobbled the groundbreaking machine as soon as it reached the market. ... Around the time of the Apple III’s launch, Apple was so sure of the new computer's success that it had halted all future development of Apple II-related projects. But by 1982, as it became clear that the Apple II wasn’t going away (in fact, it was becoming more popular than ever), Apple scrambled to upgrade its aging Apple II line, which had last been refreshed in 1979 with the Apple II+. The result was the Apple IIe, which packed in several enhancements that regular Apple II users had been enjoying for years thanks to a combination of the Apple II’s plentiful internal expansion slots and a robust third-party hardware community to fill them."