Apple Inc., founded in 1976 by Steve Wozniak and Steve Jobs, became a market leader with innovative products like the Apple II, iPod, and iPhone, which transformed their respective markets. The company's success is attributed to effective brand positioning, premium pricing strategies, and the creation of a product ecosystem that fosters brand loyalty. Apple also leverages innovative marketing campaigns, such as the 'I'm a Mac vs. I'm a PC' ads, to maintain a competitive advantage.