Mobile phone commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion—enough to provide one for every person on Earth. In first quarter of 2016, the top smartphone developers worldwide were Samsung, Apple, and Huawei, with smartphone sales represented 78 percent of total mobile phone sales. For feature phones (or "dumbphones") , the largest were Samsung, Nokia, and Alcatel. A handheld mobile radio telephone service was envisioned in the early stages of radio engineering. In 1917, Finnish inventor Eric Tigerstedt filed a patent for a "pocket-size folding telephone with a very thin carbon microphone".
Mobile phone overuse they wanted. This survey shows the psychological effect that cell phones have on people, specifically young people. Checking a cell phone has become a normal daily event for many people over the years just as getting dressed in the morning is, people don't feel right when they don't do it. Mobile phone overuse can be especially dangerous in certain situations such as texting and driving or talking on the phone while driving. Over 8 people are killed and 1,161 are injured daily because of distracted driving. At any given daylight moment across America, approximately 660,000 drivers are using cell phones