14. Martin CooperQuick, check your pockets. Whether you're toting an iPhone, a Razr, or an enV, you owe a debt to Martin Cooper and his 1973 patent responsible for the mobile phone as we know it. His invention, created during his tenure at Motorola, weighed just shy of 2 pounds, and ten years would pass before mobile phones broke the 1-pound barrier. Cooper is still active in the telephone business. His company ArrayComm develops antenna technology so today's 2-ounce phones can reach their network.15. Nolan BushnellAtari is synonymous with video gaming--so much so that the name remains in use (though now far removed from founder Nolan Bushnell, the undisputed father of video gaming) 36 years after it originated. Bushnell's inspiration--a world where everyone could play games in the comfort of their own home--is a rare instance where the vision panned out almost exactly as envisioned. Though no one is thrilling over Atari's consoles any more, Atari and Bushnell paved the way for every video game platform that has followed.16. Vint CerfTuring Award. National Medal of Technology. Presidential Medal of Freedom. Vint Cerf has one of the most impressive résumés in technology. Cerf's work as an Internet pioneer has largely taken place in universities and government agencies, which in the early 1970s led directly to the creation of ARPANet, the predecessor to today's Internet. Cerf now works for--who else?--Google.17. Don EstridgeIBM veteran Don Estridge is widely known as "the father of the PC," at least in its Big Blue incarnation. Estridge developed a number of computer systems, even tinkering with NASA radar equipment. But he is best known for his work as a manager--leading a "skunk works" staff of just 14 people that ultimately produced the IBM PC, an "open" platform that could run third-party software and accept third-party upgrades, that would become the standard for business. Tragically, Estridge died in a plane crash in 1985 and never saw his creation achieve ubiquity.