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Telegraph- Samuel Morse
Device for transmitting and receiving messages over long distances. -
Telephone- Alexander Graham Bell
Is a device that permits two or more users to have a conversation when they are too far appart to be heard directly. -
Radio-Guglielmo Marconi
The wireless transmission and reception of electric impulses or signals by means of electromagnetic waves, the use of these waves for the wireless transmission of electric impulses into which sound is converted. -
Television-John Logie Baird
Telecommunication medium used for transmitting moving images in black and white or in color, and in two or three dimensions and sound. -
Computer- Honrad Zuse
A programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. -
Tablet-Alan Kay
Is a portable computer that uses a touchscreen as its primary input device. Most tablets are slightly smaller and weigh less than the average laptop. -
Mobile Phone- Martin Copper
Portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.
