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SpyIntel [72]
3 years ago
15

Doctor Marathon copper made the first call on a dash in 1923​

English
2 answers:
Marat540 [252]3 years ago
4 0

Answer:

Martin Cooper là người phát minh ra điện thoại di động. Tiến sĩ Cooper là giám đốc điều hành (CEO) và người sáng lập ra ArrayComm, một công ty hoạt động trong công nghệ anten thông minh và cải tiến mạng không dây.

Dr. Martin Cooper

Tiến sĩ Martin Cooper, nguyên là một giám đốc bộ phận các hệ thống ở Motorola, được cho là người phát minh ra chiếc máy thu phát cầm tay đầu tiên và là người đầu tiên thực hiện một cuộc gọi trên một chiếc điện thoại di động vào tháng 4 năm 1973. Cuộc gọi đầu tiên ông thực hiện là với kỳ phùng địch thủ của mình, Joel Engel, Giám đốc nghiên cứu của

Tomtit [17]3 years ago
3 0

\huge \boxed{\mathbb{QUESTION} \downarrow}

  • Doctor Marathon Cooper made the first call on a ____ in 1923 .

\large \boxed{\mathbb{ANSWER} \downarrow}

  • Doctor Martin Cooper made the 1st call on a <u>DynaTAC </u><u>phone </u>on April 3, 1973.
  • He made the call during a press conference which took place in New York.
  • He called Joel Engel, an engineer who was the head of AT & T's rival project & thus made the 1st public phone call.
  • During the call, he boasted about his new portable phone & how the cellular phone actually worked.
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