Steve Jobs made a difference on IT because...

1. He co-founded Apple with Steve Wozniak, and they both helped to popularize the
idea of the personal computer with the Apple II, a mass-produced 8-bit computer encased in plastic that became one of the most successful PCs of the 1980s.

2. He changed the way we buy, organise and listen to music, thanks to iTunes.

3. The iPhone (also invented by him) introduced a new mobile operating system, iOS.