The Lisa was a personal computer designed by Apple Computer, Inc. during the early 1980s. It was the first personal computer to offer a graphical user interface in an inexpensive machine aimed at individual business users.

Development of the Lisa began in 1978 as a powerful personal computer with a graphical user interface (GUI) targeted toward business customers.

In 1982, Steve Jobs was forced out of the Lisa project, so he joined the Macintosh project instead. The Macintosh is not a direct descendant of Lisa, although there are obvious similarities between the systems and the final revision, the Lisa 2/10, was modified and sold as the Macintosh XL.

The Lisa was a more advanced system than the Macintosh of that time in many respects, such as its inclusion of protected memory, cooperative multitasking, a generally more sophisticated hard disk based operating system, a built-in screensaver, an advanced calculator with a paper tape and RPN, support for up to 2 megabytes (MB) of RAM, expansion slots, a numeric keypad, data corruption protection schemes such as block sparing, non-physical file names (with the ability to have multiple documents with the same name), and a larger higher-resolution display. It would be many years before many of those features were implemented on the Macintosh platform. Protected memory, for instance, did not arrive until the Mac OS X operating system was released in 2001. The Macintosh featured a faster 68000 processor (7.89 MHz) and sound. The complexity of the Lisa operating system and its programs taxed the 5 MHz Motorola 68000 microprocessor so that consumers said it felt sluggish, particularly when scrolling in documents.

Lisa may refer to:

Kevin Michael Costner (born January 18, 1955) is an American actor, singer, musician, producer, director, and businessman. He has won two Academy Awards, and two Golden Globe Awards and has been nominated for three BAFTA (British Academy of Film and Television Arts) Awards. Costner's roles include Lt. John J. Dunbar in the film Dances with Wolves, Jim Garrison in JFK, Ray Kinsella in Field of Dreams, Robin Hood in Robin Hood: Prince of Thieves, Crash Davis in Bull Durham, Robert "Butch" Haynes in A Perfect World, Frank Farmer in The Bodyguard, Lt. Cmdr. Tom Farrell in No Way Out, and Eliot Ness in The Untouchables. Costner also founded the band Modern West, and has performed with the band since 2007.

Born in Lynwood, California, the youngest of three sons (the middle of whom died at birth). His mother, Sharon Rae (née Tedrick), was a welfare worker, and his father, William Costner, was an electrician and later utilities executive at Southern California Edison. Costner's patrilineal ancestry originates with German immigrants to North Carolina in the 1700s; he also has English and Irish ancestry, and has said that one of his ancestors had "married a Cherokee woman". Costner was raised Baptist. He attended Cabrillo Middle School and Villa Park High School. Costner was not academically inclined. Rather, he enjoyed sports, took piano lessons, wrote poetry and sang in the First Baptist Choir. He has stated that a viewing of the film How the West Was Won at the age of seven had "formed" his childhood.