Telecommunication invections

Telegraph- David Alter

1836

Point-to-point text messaging system, used from the 1840s until better systems became widespread.

Telephone- Antonio Mecucci

1854

Telecommunication device designed to transmit acoustic signals at a distance by means of electrical signals

Television - John Logie Baird

1884

Telecommunication medium used for transmitting moving images in monochrome or in color, and in two or three dimensions and sound.

Radio- Nikola Tesla

1891

Electronic device that allows the recovery of voice signals or of any other type, transmitted by a radio transmitter using electromagnetic waves.

Computer- Konrad Zuse

1936

Machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

Tablet - Alan Key

1968

Mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package.

Mobile phone - Martin cooper

1973

Portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.