Apple is a vertically integrated media and technology company founded in 1976 by Steve Jobs and Steve Wozniak. It started as a computer company known for products like the Macintosh but became a major media company in 2001 with the launch of the iTunes store. Apple owns all aspects of production and software for its products, allowing it to retain all profits but also bear all losses alone. Major competitors include Microsoft and Samsung. Apple targets upper and middle class consumers with premium products and has sold over 250 million iPhones. The biggest organizational change was when Steve Jobs passed away in 2011. Apple has generally avoided major issues despite some software glitches.