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Computer,Charles Babbage
A computer is an electronic system used to store and process data. The computer takes data from the outside (through the input units), stores it in its memory, processes it and sends it to the operator (through the output units). -
telegraph ,Samuel Morse
Technically Telegraph is designed to create articles and share them directly on Telegram -
Telephon,Alexander Graham Bell
It is a device that allows to transmit sounds at a distance by means of electrical signals. -
Radio,Nikola Tesla
Radio is a means of communication that is based on sending audio signals through radio waves -
TV, John Logie Baird
The television, tele or TV is an electronic device intended for the reception and reproduction of television signals. Usually it has a screen and commands or controls. The word comes from the Greek τῆλε (tēle, 'far'), and the Latin visōr -
Tablet,Alan Kay
Tablets or tablets use a touch-sensitive screen so you can quickly type and navigate. They are characterized by being very light and are cheaper than a computer.