2. The world's first smart phone is Tiantuo A6 188. It was made by Motorola in 2000. The Dragon Ball 16MHz CPU independently developed by Motorola is adopted, which supports WAP 1. 1 wireless Internet access and adopts PPSM operating system. Although the Dragon Ball is only 16MHz, it has laid the foundation for future smart phone processors and is of milestone significance.
3. It's just that the innovation of iphone in many aspects has epoch-making significance, such as full touch screen, which has brought the development of smart phones to a new level.