name was shortly thereafter changed to Visi On, a play on "vision" that retained their "Visi" naming. An experimental port to the ill-fated Apple III was completed in November, and after that, development work shifted to the DEC VAX, which had cross-compilers for a number of different machines. In early 1982 Personal Software changed their name to VisiCorp, and was betting much of the future success of the company on Visi On. Visi On had many features of a modern GUI, and included a few that did not become common until many years later. It was fully mouse-driven, used a bit-mapped display for both text and graphics, included on-line help, and allowed the user to open a number of programs at once, each in its own window. Visi On did not, however, include a graphical file manager. Visi On also demanded a hard drive in order to implement its virtual memory system used for "fast switching", and at the time hard drives were a very expensive piece of equipment. COMDEX demo Tom Powers, VisiCorp's new VP of marketing, pushed for the system to be demonstrated at the fall COMDEX show in 1982. Others in the company were worried that the product was not ready for shipping, and that showing it so early would leave potential customers and distributors upset if it wasn't ready soon after. Another concern was that VisiWord was being released at the same show, and there was some worry that it might be lost in the shuffle. The demonstrations at COMDEX were a huge success. Many viewers had to be told it was not simply a movie they were watching, and Bill Gates speculated that the PC was in fact simply a terminal for a "real" machine like a VAX. It became one of the most talked-about products in the industry. However this huge success led to a number of very serious problems. In separate June and July 1983 Byte articles, the company mentioned a late summer 1983 release. Corporate civil war While Visi On development continued, VisiCorp as an entity was in the process of self-destruction. Terry Opdendyk, the president hand-picked by the early venture capital investors, had an extremely autocratic management style that led to the departure of many key executives. From late 1981 to the eventual release of Visi On, most of the product management of the company left, notably Mitch Kapor in charge