Steve Wozniak is an American computer engineer with an estimated net worth of $100 million dollars. Wozniak was one of the Apple co-founders, along with Steve Jobs, Ronald Wayne, Mike Markkula, and others, who designed, developed, and marketed one of the first commercially successful lines of personal computers, the Apple II series. Wozniak and Jobs assembled the first prototypes of the Apple computer in Jobs' bedroom and later in Jobs' garage. In the 1970s Wozniak created the Apple I and Apple II computers. Wozniak is credited with being the sole creator of the original Apple hardware, operating system, and circuit board designs. Wozniak's machines and inventions are credited with influencing the personal computer revolution in the 1970s. Wozniak co-founded Wheels of Zeus (WoZ, also his nickname) in 2001, to create wireless GPS technology in order to help the average person on the street find everyday things more easily.