The printing machine was invented in the year
1223
1333
1443
1553
The inventor of radio is
Guglielmo Marconi
Johann Gutenberg
J.C Bose
Lohn Logie Baird
The fastest and the most convenient means of sending spoken message is
Visual communication system
Telephones
Telegram
Letter
Find the odd one.
Aeroplane
Car
Taxi
Train
The fastest and efficient way of sending information around the world is
Telegraph
Television
Internet