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Telegraph-Samuel Morse
The first electrical telecommunications system,It worked by transmitting electrical signals over a wire laid between stations. -
telephone-Graham Bell
Is an instrument designed for the simultaneous transmission and reception of the human voice. -
Radio-Nikola Tesla
A piece of electronic equipment used for listening to radio broadcasts.Was created by Nikola Tesla but Guglielmo Marconi stole the patent. -
Television-John Logie Baird
a device shaped like a box with a screen that receives electrical signals and changes them into moving images and sound. -
Computer-Konrad Zuse
A computer is a programmable device that stores, retrieves, and processes data. The first successful commercial computers wereApple II, TRS-80 and PET 2001 -
Tablet-Alan Kay
A tablet, or tablet PC, is a portable computer that uses a touchscreen as its primary input device,highly demanded in today's world for drawing and calculating. -
Mobile phone-Martin Cooper
A mobile phone is a wireless handheld device that allows users to make and receive calls.Now phones are allowed to make almost every think that you need.
