Mobile phone evolution

Mobile phone

By Tamar14

  • The patent

    In 1917, Finnish inventor Eric Tigerstedt filed a patent for a "pocket-size folding telephone with a very thin carbon microphone".

  • The first handheld cellular mobile phone

    The first handheld cellular mobile phone
    The first handheld cellular mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing 2 kilograms (4.4 lb).

  • The first commercial automated cellular network analog

    The first commercial automated cellular network (1G) analog was launched in Japan by Nippon Telegraph and Telephone in 1979

  • The simultaneous launch of the Nordic Mobile Telephone (NMT) system

    In 1981 the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway, and Sweden.

  • The first commercially available handheld mobile phone

    The first commercially available handheld mobile phone
    In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone.

  • The Memorandum of Understanding was signed.

    In 1987 was signed the Memorandum of Understanding, between 13 European countries who agreed to launch a commercial service by 1991.

  • The second-generation (2G) digital cellular technology

    In 1991, the second-generation (2G) digital cellular technology was launched in Finland by Radiolinja on the GSM standard.

  • The lithium-ion battery

    The lithium-ion battery, an indispensable energy source for modern mobile phones, was commercialized by Sony and Asahi Kasei in 1991.

  • The third generation (3G)

    In 2001, the third generation (3G) was launched in Japan by NTT DoCoMo on the WCDMA standard.

  • The mobile phone now

    In 2018, the GSM was used by over 5 billion people in over 220 countries. The GSM (2G) has evolved into 3G, 4G and 5G.