Computer history By Watsonriz Jan 1, 1900 Spread spectrum created Period: Jan 1, 1900 to Jan 1, 2014 Computer history Jan 1, 1910 Hitachi is founded Jan 1, 1920 First radio broadcastiong in U.S. Jan 1, 1930 Citizen is founded Jan 1, 1940 First handeled two way radio Jan 1, 1950 United staes government recieves UNIVAC Jan 1, 1960 First integrated circuits being sold Jan 1, 1970 IBM introduces system/370 Jan 1, 1980 MS DOS begins to be used Jan 1, 1990 Microsoft exceeds 1 billion dollars in sales
