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Cooper holding a DynaTAC cellphone in 2007. That first cell phone began a fundamental technology and communications market shift to making phone calls to a person instead of to a place.
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.
27 Φεβ 2024 · Alexander Graham Bell invented the telephone in 1876. And then in 1900, on December 23 on the outskirts of Washington, D.C., an inventor named Reginald Fessenden accomplished a remarkable feat: He made the first wireless telephone call.
The first portable cellular phone commercially available for use on a cellular network was developed by E.F. Johnson and Millicom, Inc. [29] It was introduced by Millicom subsidiary Comvik in Sweden in September 1981. [30] Motorola was the first company to produce a handheld mobile phone.
13 Ιαν 2020 · Dr. Martin Cooper, a former general manager for the systems division at Motorola, is considered the inventor of the first modern portable handset. In fact, Cooper made the first call on a portable cell phone in April 1973 to his rival, Joel Engel, who served as Bell Labs head of research.
3 Απρ 2023 · On April 3, 1973, before stepping into a news conference in Manhattan to demonstrate the new device that would go on to revolutionize communications, Cooper tested it by placing the first...
BBC. Marty Cooper, with the phone he used to make the first mobile call. On 3 April 1973, Marty Cooper stood on a corner of Sixth Avenue in New York and took a phone book from his pocket. He...
