telecomunitation inventions

telegraph- Samuel F.B. Morse

1855

telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations.

telephone- Alexander graham bell

1876

A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user.

radio- Heinrich Hrtz

1887

In 1895, a young Italian named Gugliemo Marconi invented what he called “the wireless telegraph” while experimenting in his parents’ attic. He used radio waves to transmit Morse code and the instrument he used became known as the radio. In 1906, Radio works by changing sounds or signals into radio waves, which travel through air, space, and solid objects, and the radio receiver changes them back into the sounds, words, and music we hear.

television- John Logie Braird

1926

Television became available in crude experimental forms in the late 1920s, but it would still be several years before the new technology would be marketed to consumers

mobile phone- Martin Cooper

1973

The first smartphone in history was the IBM Simon. Manufactured in 1992 and distributed in the US between August 1994 and February 1995, it was priced at $ 899, with a user interface lacking physical buttons and based entirely on a monochrome LCD-type touch screen. ... Ibm Simon with numeric keypad

computer- Charles Babbage

1977

The history of personal computers or PCs as consumer electronic devices for the mass market began in 1977 with the introduction of microcomputers, although it has been applied long before, some mainframe computers and mainframe computers as single-user systems.

tablet- Jeff Hawkins

1989

The first tablet computer debuted the market in 1989 under the name of GRidPad, a name coined from the Grid System. However, before that, there were Graphic Tablets that connected to computer workstations. These Graphic Tablets enabled the creation of different user interfaces such as animation, drawing, and graphics.