2) Who invented the smartphone?
Martin Cooper Cooper, the current age 85 years, the owner called "the father of the mobile phone." patented the 17 OCT 2516 and received a number of patents, "US Patent 3," he thought, 166 906 mobile phone price at the beginning, 3 500 dollars. Too high and not very popular. And I think we should develop to be smaller to provide convenient and portable. And I think should be attached to the ear or embedded in the skin.