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A mobile phone or cell phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone (landline phone).
Cell phones began to gain popularity in the 1990s, although their history dates back to the earlier decades. The first true mobile phone call was made in 1973 by Martin Cooper, a Motorola researcher and executive, but it took about a decade for cell phones to become commercially available.
3 de abr. de 2023 · Learn how the cellphone evolved from a bulky device that made the first call in 1973 to a smartphone that connects to the internet. Explore the science fiction origins, the technological challenges and the social impact of the cellphone.
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.
With encouragement from his boss, Motorola’s chief of portable communication products, John Mitchell, Cooper, and the engineers at Motorola produced the working prototype for the first cell phone.
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.
20 de mar. de 2024 · The first phone went on sale for nearly $4,000 in 1983. Here's a brief history of the cell phone industry and how it has evolved over time.
