Development in the sphere of technology By facebooker_1143344849377314 1833 The invention of the computer 1876 The invention of the telephone 1973 The invention of a mobile telephone 1975 The invention of a personal computer Jan 1, 1983 The invention of the Internet 1998 The invention of Smartwatch 2004 The invention of Facebook 2008 The invention of the first Android phone 2009 The invention of 4G
