ELECTROMECHANICAL ERA (1848 - 1940)
The discovery of ways to control and use the electricity.Inventions:
- Colossus machine: the first on electronic calculating devices.
- The voltaic battery which is considered the first source of stores electricity in the 8th century.
- Samuel F.J Morse invented the first magnetic telegraph in 1832, he also made an experiement version in 1815.
- Telephone and Radio: The first succesful bi-directional transmission of clear speech was invented by Bell and Watson on March 10th, 1876.
- Marchese Guglielmo Marconi invented the radiotelegraph.
- MARK 1: the first complete turing computer, created by the IBM in Hardvard.




Nice work with the pictures Belén.
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