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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 a mechanical device.
Digital computer was an electrical medium.
Alexander Graham Bell invented the television.
The invention of television dated to 1876.