Vacuum tube

The invention:

 A sealed glass tube from which air and gas have
been removed to permit electrons to move more freely, the vacuum
tube was the heart of electronic systems until it was displaced
by transistors.


The people behind the invention:

Sir John Ambrose Fleming (1849-1945), an English physicist
and professor of electrical engineering
Thomas Alva Edison (1847-1931), an American inventor
Lee de Forest (1873-1961), an American scientist and inventor
Arthur Wehnelt (1871-1944), a German inventor

Vacuum cleaner

The invention:

The first portable domestic vacuum cleaner successfully
adapted to electricity, the original machine helped begin
the electrification of domestic appliances in the early twentieth
century.


The people behind the invention:

H. Cecil Booth (1871-1955), a British civil engineer
Melville R. Bissell (1843-1889), the inventor and marketer of the
Bissell carpet sweeper in 1876
William Henry Hoover (1849-1932), an American industrialist
James Murray Spangler (1848-1915), an American inventor

UNIVAC Computer

The invention: 

The first commercially successful computer system.

The people behind the invention:

John Presper Eckert (1919-1995), an American electrical engineer
John W. Mauchly (1907-1980), an American physicist
John von Neumann (1903-1957), a Hungarian American
mathematician
Howard Aiken (1900-1973), an American physicist
George Stibitz (1904-1995), a scientist at Bell Labs