Jobs took over development of the Macintosh in 1981, from early Apple employee Jef Raskin, who had conceived the project. Wozniak and Raskin had heavily influenced the early program, and Wozniak was on leave during this time due to an airplane crash earlier that year, making it easier for Jobs to take over the project. On January 22, 1984, Apple aired a Super Bowl television commercial titled "1984", which ended with the words: "On January 24th, Apple Computer will introduce Macintosh. And you'll see why 1984 won't be like 1984." On January 24, 1984, an emotional Jobs introduced the Macintosh to a wildly enthusiastic audience at Apple's annual shareholders meeting held in the Flint Auditorium at De Anza College. Macintosh engineer Andy Hertzfeld described the scene as "pandemonium". The Macintosh was inspired by the Lisa (in turn inspired by Xerox PARC's mouse-driven graphical user interface), and it was widely acclaimed by the media with strong initial sales. However, its low performance and limited range of available software led to a rapid sales decline in the second half of 1984.