1958, Soviet engineer Leonid Kupriyan Norwich invented лк- 1 mobile phone, 1973, American Motorola engineer martin cooper invented the world's first commercial mobile phone. After the 2G era and 3G era, it has developed to the 4G era, followed by the 5G era, and the commercialization of 5G has appeared in China.
Mobile phone, also known as mobile phone or wireless phone, is usually called mobile phone. In the early days, there was a common name of "mobile phone", which was a portable telephone terminal that could be widely used. It was originally developed from the battlefield mobile phone manufactured by Bell Laboratories in 1940.
Smart phones, like personal computers, have independent operating systems, most of which are large-screen machines, capacitive touch screens, and some are resistive touch screens, which are powerful and practical.
Users can install programs provided by third-party service providers, including games, which can continuously expand the functions of mobile phones and realize wireless network access through mobile communication networks.