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Telegraph
Communication system that allows the transmission of information by means of electrical impulses and using a pre-established code of signs.
"the telegraph uses Morse code"
Joseph Henry created the telegraph -
Computer
The first computer resembling today's modern machines was the Analytical Engine, a device conceived and designed by British mathematician Charles Babbage between 1833 and 1871 -
Telephone
Communication system that transmits voice and sound over a long distance by electrical or electromagnetic means.
"Alexander Graham Bell patented the telephone in 1876" -
Radio
Guglielmo Marconi: an Italian inventor, proved the feasibility of radio communication. He sent and received his first radio signal in Italy in 1895. -
Television
An electrical device that receives and reproduces these images and sounds
John Logie Baird created the television -
Mobile pone
Martin Cooper Serrano is an American electronic engineer and inventor. It is considered one of the pioneers in the development of mobile telephony -
Tablet
In 1989, Jeff Hawkins, the founder of Palm Computing, created the GridPad. Some call this the first tablet computer
