In the late 1970s, Jobs' friend Steve Wozniak developed one of the first personal computers, has great commercial potential. Computer Apple II was the first mass product of Apple, initiated by Steve Jobs. Later, Jobs saw the commercial potential of the GUI, the mouse control, which led to the emergence of computers Apple Lisa and, one year later, Macintosh (Mac).
After losing a power struggle with the board of directors in 1985, Jobs left Apple and founded NeXT - the company that developed a computer platform for universities and businesses. In 1986, he acquired the computer graphics division of production company Lucasfilm, turning it into a studio Pixar. He remained CEO Pixar and principal shareholder until the studio was acquired by The Walt Disney Company in 2006, making Jobs the largest private shareholder and board member of Disney.
Difficulties in developing a new operating system for Mac led to the purchase of NeXT by Apple in 1996, the NeXTSTEP operating system to use as the basis for Mac OS X. Under the deal, Jobs was appointed adviser to Apple. By 1997, Jobs returned control of Apple, leading the corporation. Under his leadership, the company was saved from bankruptcy and a year later became profitable. Over the next decade, Jobs has led the development of iMac, iTunes, iPod, iPhone and iPad, as well as the development of the Apple Store, iTunes Store and App Store. The success of these products and services, to provide several years of stable financial returns, allowed Apple to become in 2011 the most valuable public company in the world. Many commentators have called the revival of Apple one of the