2. Mobile phones, that is, mobile phones or wireless phones, are usually called mobile phones. At first, they were just a communication tool. In the early days, it was also commonly known as mobile phones, which could be used in a wide range. They were originally developed from 1940 battlefield mobile phones manufactured by Bell Laboratories.
1958, Soviet engineer Lenin 'an and American Motorola engineer marty 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 phones are divided into smart phones and non-smart phones. Generally, the performance of smart phones is better than that of non-smart phones, but the performance of non-smart phones is more stable than that of smart phones. Most non-smart phones and smart phones use the CPU of British ARM company.
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