On January 19, 1983 Apple introduced the Lisa
computer at the introductory price of "only $9,995." The project began in 1978 as an effort to create a more modern version of the then-conventional personal computer design epitomized by the Apple II
. The Lisa was the first computer for the personal computer market that incorporated a graphical user interface. Possibly because of the high price, only 10,000 Lisas were sold.