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communication harshita sodhi

By harshita sodhi

  • typewritter

    typewritter was invented in 1870s, march 12

  • phone

    The first phone was invented in 27 march 1876.

  • telivison

  • laptop

    laptop was invented in 1981 october 19

  • ipad 2

    ipad 2 was invented in december 5 1993.

  • skype

    skype was invented in setember 2003 29.

  • youtube