Lisa definition by Webster's New World
lisa - Computer Definition
The first personal computer to include integrated software and use a graphical interface. Modeled after the Xerox Star and introduced in 1983 by Apple, it was ahead of its time but never caught on due to its $10,000 price and slow speed. It gave way to the Macintosh, which was developed by a separate group within Apple. In fact, the final production units of the Lisa were modified into a somewhat-compatible version of the Macintosh.