I recently attended a book event with Mr. Steve "Woz" Wozniak. Mr. Wozniak is credited with contributing greatly to the personal computer revolution of the 1970s. Wozniak co-founded Apple Computer with Steve Jobs in 1976 and created the Apple I and Apple II computers in the mid-1970s. The Apple II became one of the best selling computer of the 1970s and early 1980s, and became a very popular personal computer. In this video, Mr. Wozniak talks about the creation of software and how it changed the world.