According to news from Fast Technology on September 21, Chen Jin, general manager of Lenovo's mobile phone business in China, posted an article commemorating the 40th anniversary of the birth of mobile phones.
At the same time, the Motorola DynaTAC 8000X, which went on sale on September 21, 1983, isThe world's first commercial portable mobile phone.
It is reported that Martin & middot; Cooper, an employee of Motorola, dialed the mdash;— from Motorola DynaTAC 8000X in New York on April 3, 1973, which is widely considered to be the first public mobile phone.
He was standing on the street in New York and called AT&T, which was also developing mobile phone technology, which was then the world's largest communications company, while Motorola was then a small company in Chicago.
Martin Cooper said on the phone: & ldquo; I'm calling you from a real handheld portable mobile phone. & rdquo
However, limited by technology, commercialization and other obstacles, the phone has not been put on the market for a long time, of which the biggest resistance is the construction of base stations.
It was not until September 21, 1983 that the Motorola DynaTAC 8000X was officially launched, valued at 3000 pounds (about 20,000 to 30,000 yuan at the time) in the UK.
The phone weighs 1 kilogram and takes 10 hours to be fully charged, but the phone can only talk for half an hour before the battery runs out.