In 1876 Alexander In 1876 Alexander Graham Bell, an American engineer, Invented telephone.
In 1908 James M. In 1908 James M. Spangler from the USA built the first vacuum cleaner.
Akito Morita (Japan) Akito Morita (Japan) developed the first personal stereo – Sony Walkman.
In 1908 US In 1908 US automobile manufacturer Henry Ford created the world’s first car assembly line.
John Logie Baird John Logie Baird from Scotland invented television in 1926
Nicephore Niepce Nicephore Niepce from France pioneered photography in 1829.
In 1981 Bill Gates In 1981 Bill Gates (USA) created Microsoft-DOS (Disk Operating System).