History of mobile phones - Wikipedia
The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission of speech by signal has a long history, the first devices that were wireless, mobile, and also capable of connecting to the standard telephone network are much more recent.
Mobile phone - Wikipedia
The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City on 3 April 1973, using a handset weighing c. 2 kilograms (4.4 lbs). [2] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan. [3] In 1983, the DynaTAC 8000x was the first commercially available handheld ...
History Of The Cell Phone (1973 to 2024) - Practically Networked
2024年1月11日 · Motorola developed the first portable cell phone in 1973. The hand-held device was shaped like a brick and weighed around 2.4 pounds. It was called the DynaTAC 8000X and is considered as the original cell phone. The device only operated for a maximum of 30 minutes talk time, and that was with a huge 10 hours of charging!
50 years ago, he made the first cell phone call | CNN Business
2023年4月4日 · On April 3, 1973, Martin Cooper stood on a sidewalk on Sixth Avenue in Manhattan with a device the size of a brick and made the first public call from a cell phone to one of the...
The First Cell Phone: The Device the Changed the World
2022年1月20日 · On April 3, 1973, Motorola engineer, Martin Cooper, rang his rival, Joel S. Engel of Bell Labs, from the first cell phone. The world had just witnessed its first mobile phone call. Later that day, Martin Cooper and his colleagues went to a news conference and revolutionized communication technology. Motorola’s cell phone was called DynaTAC 8000X.
From ‘the Brick’ to the iPhone, the Cellphone Celebrates 50 Years
It was April 3, 1973, and Cooper had just placed the world’s first cellphone call. Cooper, who worked for Motorola, had just stepped out of the Hilton Midtown where he would soon officially...
Cell phone history: From the first phone to today's smartphone ... - Versus
2020年8月4日 · The first portable cell phone was invented in 1973 by Motorola. On April 3, 1973, Motorola engineer Martin Cooper made the first-ever cell phone call on the DynaTAC 8000X. The prototype he used weighed 2.4 lb (1.1 kg) and measured 9.1 x 5.1 x 1.8 in (23 x 13 x 4.5 cm).
Martin Cooper | Biography, Inventions, & Facts | Britannica
Martin Cooper, American engineer who led the team that in 1972–73 built the first mobile cell phone, the DynaTAC (Dynamic Adaptive Total Area Coverage), and made the first cell phone call, on April 3, 1973. He is widely regarded as the father of the cellular phone.
The history of cell phones: A decade-by-decade timeline
2024年9月16日 · After decades of research and development, Motorola unveiled the world’s first cell phone prototype in 1973. Martin Cooper, the Motorola engineer who led the development of this invention,...
Motorola DynaTAC - Wikipedia
A DynaTAC 8000X; the first commercially available mobile phone from 1983. Electrical engineer Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007. The DynaTAC is a series of cellular telephones manufactured by Motorola from 1983 to 1994.
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