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Unlike digital computers – which started out as mechanical devices and then went through a brief electromechanical period during the 1930s, finally becoming electronic only in the 1940s – television was an electrical medium from the very beginnings.
Attempts to send images over distances with the use of electricity date to 1876, the year Alexander Graham Bell invented the telephone.
Television was not an electrical medium from the very beginnings.
Television was a mechanical device.
Alexander Graham Bell invented the television.
The invention of telephone dated to 1876.