When was the mobile phone invented?

The mobile phone was invented in 1973.

Mobile phone, the full name is mobile phone or wireless phone, usually called mobile phone. It was originally just a communication tool. In the early days, it was also commonly known as "Big Brother". It is a portable phone that can be used in a wide range of The terminal was first developed from the field mobile phone manufactured by Bell Labs in the United States in 1940. In 1958, Soviet engineer Leonid Kupriyanovich invented the mobile phone. In 1973, American Motorola engineers invented the world's first commercial mobile phone.

Mobile phone communications have gone through the 2G era, the 3G era, and so far have developed into the 4G era. The 5G era has also followed closely behind, and 5G has been commercialized in China.

Introduction to mobile phone operation methods:

1. Button type

Button mobile phones were once the mainstream of the mobile phone market. Since the birth of mobile phones, they have had various types of buttons. As the earliest medium for interaction between mobile phones and users, the importance of the keyboard is self-evident. All operations such as making phone calls and sending text messages rely on the keyboard.

2. Touch screen type

Touch screen mobile phones are the trend of the modern mobile phone market. Touch screen mobile phones are divided into resistive screen and capacitive screen mobile phones. They refer to the use of touch screen technology to combine the A type of mobile phone where technology is applied to the mobile phone screen. There is no clear boundary between touch-screen mobile phones and other mobile phone categories. The biggest feature is its large screen, which can bring visual enjoyment to users. It reflects the characteristics of a large screen in terms of text and images.

However, due to the large screen, the volume is relatively large, and it also takes up a lot of space to carry a touch-screen mobile phone. At the same time, touch-screen mobile phones can be controlled with fingers, which is a good replacement for the keyboard.

Reference for the above content: Baidu Encyclopedia-Mobile