Phone evolution

History of cell phones

By Kirra_1997

  • Telephone

    Telephone
    The first telephone was invented 1870 by Alexander Graham Bell. There was many others that looked into the invention of the telephone. The telephone switchboard was invented in 1876, which allowed for the formation of telephone exchanges, and eventually networks. http://en.wikipedia.org/wiki/Telephone

  • Cordless Phone

    Cordless Phone
    The first version of the cordless phone was invented in 1965 but could not be marketed. It was invented by a Jazz musician. The innventions 2-mile range caused radio signals to interfere with aircraft. She sold the rights to her invention who modified it for use.
    http://en.wikipedia.org/wiki/Cordless_telephone

  • First cell phone was invented.

    First cell phone was invented.
    The first moblie phone was introduced by Dr. Martin Cooper. He made the first call on April 3rd, 1973. He was a Motorola researcher and executive.

  • Inmarsat Satellite telephone system

    Inmarsat Satellite telephone system
    The Inmarsat satellite telephone system, originally developed in 1979 for safety of life at sea, is now also useful for areas out of reach of landline, conventional cellular, or marine VHF radio stations. http://en.wikipedia.org/wiki/History_of_mobile_phones

  • First Generation Cell phone networks

    First Generation Cell phone networks
    The first commercially automated cellular network (the 1G generation) was launched in Japan in 1979. Canada launched their 1G networks in the 1980's. The technological development that distinguished the First Generation of mobile phones from the previous generation was the use of multiple cell sites, and the ability to transfer calls from one site to the next as the user travelled between cells during a conversation.

  • Second generation Cell phone networks

    Second generation Cell phone networks
    In the 1990's the 2nd generation mobile phones emerged. The second generation introduced text messaging. 2G also introduced the ability to access media on mobile phones.

  • Bag Phones

    Bag Phones
    Bag Phones were manufactured from 1992-2000. The company that manufactured the bag phone was Motorola. When cell phones were invented they became out of style.
    http://en.wikipedia.org/wiki/Motorola_Bag_Phone

  • Blackberry was invented

    Blackberry was invented
    Blackberries were designed and devoloped by a Canadian company. Was first introduced as a 2 way pager. In 2003 the most commonly known blackberry smartphone was released. http://en.wikipedia.org/wiki/Blackberry

  • Third Generation Cell phone network

    Third Generation Cell phone network
    The main difference between 3G technology from 2G technology is the use of packet switching rather than circuit switching for data transmission. The first 3G network was launched in Japan. By the end of 2007 there was 295 million subscribers on the 3G network. http://en.wikipedia.org/wiki/History_of_mobile_phones

  • Fourth generation Cell phone networks

    Fourth generation Cell phone networks
    The main ways in which 4G differed technologically from 3G was in its elimination of circuit switching, instead employing an all-IP network. 4G is faster then the previous networks. http://en.wikipedia.org/wiki/History_of_mobile_phones