I... just... can't... help.... myself... from computer history website cited above... the year 1990... " Microsoft released Windows amid a $10 million publicity blitz.... ...As a result, PCs moved toward the user-friendly concepts of the Macintosh, making IBM and IBM-compatible computers more popular. " from the Wikipedia page I cited: " Beginning in 1979, started by Steve Jobs and led by Jef Raskin, the Apple Lisa and Macintosh teams at Apple Computer (which included former members of the Xerox PARC group) continued to develop such ideas. The Macintosh, released in 1984, was the first commercially successful product to use a multi-panel window GUI. " Steve Jobs Time Magazine cover 1982 Bill Gates Time Magazine cover 1984 sorry, Gates does not begat Jobs, he took an idea and made it more available, no doubt.