Apple Products Evolution

Jobs and several Apple employees including Jef Raskin visited Xerox PARC in December 1979 to see the Xerox Alto. Xerox granted Apple engineers three days of access to the PARC facilities in return for the option to buy 100,000 shares (800,000 split-adjusted shares) of Apple at the pre-IPO price of $10 a share. Jobs was immediately convinced that all future computers would use a graphical user interface (GUI), and development of a GUI began for the Apple Lisa.
When Apple went public, it generated more capital than any IPO since Ford Motor Company in 1956 and instantly created more millionaires (about 300) than any company in history.
• 1981–1985: Lisa and Macintosh
Steve Jobs began working on the Apple Lisa in 1978 but in 1982 he was pushed from the Lisa team due to infighting, and took over Jef Raskin's low-cost-computer project, the Macintosh. A turf war broke out between Lisa's "corporate shirts" and Jobs' "pirates" over which product would ship first and save Apple. Lisa won the race in 1983 and became the first personal computer sold to the public with a GUI, but was a commercial failure due to its high price tag and limited software titles.