Inventor of TV-B-Gone, a keychain that turns off TVs in public places. Co-founder of 3ware, a successful Silicon Valley startup in the 1990s. Pioneer of Virtual Reality in the 1980s. Author and teacher. I go around the world giving talks and workshops. Promoter of hackerspaces, open source hardware. Mentor for others wherever I goes. Co-founder of Noisebridge hackerspace in San Francisco. President and CEO of Cornfield Electronics.