Lots More Information Prev Next Related Articles How Robots WorkHow ASIMO WorksHow FIRST WorksHow Microprocessors WorkHow Remote Controls WorkHow iPods WorkHow Digital Cameras WorkHow Speakers WorkHow do microphones work, and why are there so many different types?How do touch-screen monitors know where you're touching? More Great Links Pleo's WorldUgobeThe Old Robots -- 1980s consumer robots Sources Pleo's World: Discover Pleo. http://www.pleoworld.com/discoverSosoka, John. Personal interview. Conducted 10/3/2007.Stemmerman, Julia. Personal communication. 10/12/2007. Special Thanks Thank you to John Sosoka, chief technical officer of Ugobe, and Julia Stemerman of SHIFT Communications for their invaluable assistance with this article.