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Telecommunication Devices - Coggle Diagram

- - - - *1960: Tone dialing telephones appear.
      - 1981: CELLULAR TELEPHONY is born
      - *1993: In the US, cellular telephony begins
  - - - y esta
        
        Computing.
        
        Telecommunications.°
        
        °Document editing.
        
        Consumer electronics. • Entertainment (cinema,°