What is the lot service engine of mobile phone?

It is the best choice for the team to face the explosive growth of Internet products. The problems to be solved are fast iteration, high reliability and high availability. Dividing products with high complexity into smaller modules, each module is maintained by several small teams according to Conway's law, which can reduce communication costs, improve collaboration efficiency, and better realize rapid iteration and flexible expansion.

Mobile phones, called 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 phone". They are portable telephone terminals that can be widely used. They were originally developed from 1940 battlefield mobile phones manufactured by Bell Laboratories.

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.

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.

Broadly speaking, smart phone not only has the function of talking on mobile phone, but also has most functions of PDA, especially personal information management based on wireless data communication, browser and email functions.

Smart phones provide users with enough screen size and bandwidth, which is not only convenient to carry around, but also provides a broad stage for software operation and content services. Many value-added services can be developed, such as stocks, news, weather, transportation, commodities, application downloads, music pictures, game downloads and so on.