At the age of 23, Steve Jobs was a millionnaire with his second computer, the Apple II. In 1981, Apple was one of the three biggest producer of PC. Some years later, Apple stopped to name their personal computer PC, but Macintosh. All the Apple products are always very expensive but Apple never had a lot of problem to sell them. In 1985, Steve Jobs had give up Apple and let John Sculley in possession of Apple. In 1997, Steve Jobs came back in the Apple company. Apple made a deal with Microsoft for having Microsoft office on Apple devices and created the Apple Store. Some years later, Apple innovated an iPod to listen music. They made 3.24 billion dollars with the iPod in 2005. In 2003, the creation of Itunes has revolutionized the way to buy