-
Telegraph, Samuel Morse
What it is?:The telegraph is a communication system that allows us to transmit information through electrical impulses, using various very specific sign codes.
How it works?:The telegraph works by means of a transmission of electrical signals, in this invention the transmission of text messages is based. -
Telephone, Alexander Graham Bell
What is a telephone?: The telephone is a communication device, which is capable of transmitting sound and voice over long distances, through electrical and electromagnetic systems.
How it works?: Phones work by sending signals to multiple cell towers. Use of electromagnetic waves. -
Radio, Guillermo Marconi
What it is?: Radio, among many, is a means of communication, based on sending various audio signals through radio waves, which are transmitted through the device.
How it works?: The radio works by recording the information it wants to transmit, then producing it in the form of an electrical signal, it is used to listen to: the news, music... without the need for cables. -
Television,John Logie Baird
What it is?:The television, tele or TV is an electronic device intended for the reception and reproduction of television signals.
How it works?:The television tube transforms the electrical signal it receives into the image we see on the screen, it serves to project images. -
Computer, Konrad Zuse
What it is?: A computer is a device, which is made up of a system made up of different programs and electronic elements, which together allow processing and ordering all kinds of information.
How works it?:Currently, computers inside them have a labyrinth of microscopic transistors that react quickly to the electrical impulses that pass through their circuits and that have only two positions, both of which correspond to the numbers used by the binary system, which are zeros and ones. -
Tablet, Alan Kay
What is it?: A tablet is a portable electronic device larger than a phone, it is similar to a computer, in terms of operation, but the difference is that tablets are portable, they are much smaller and lighter, they are the intermediate between computer and phone.
How it works?:Tablets are used for purposes similar to those of a computer, but these have a touch screen so you can write and navigate quickly, (and obviously, its appearance has nothing in common with a computer). -
Mobile phone, Martin Cooper
What it is?: A mobile phone or is a portable device that is capable of making or receiving calls, evidently over a long distance.
how make it.
How it works?: They work by sending signals to other cells of other mobile phones, to communicate, what differentiates it from the telephone is that the mobile phone can be used on the move.