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The sealed letter was born in the year 1840, it all started with the Roman emperor Claudius who created a new type stronger than papyrus, papyrus became so popular that there was even a shortage of it. To make a letter you must write either with a pen, pencil or pencil and then put a stamp on it. -
The first fax machine was created in the year 1843, this machine was made through experiments to replicate graphic symbology. The steps to use this machine are: press the {Facsimile} key, place the original on the document glass or in the ADF, enter the fax number, press the {Start B&W} key, to finish press {2} to start sending the fax. -
The Phone was created in 1854, the inventor who was Antonio Meucci created it to be able to connect his office with the bedroom where his sick wife was. To use a phone we must make sure it has a battery, we turn it on with the button and put the password to unlock it -
The first telegram was sent by William Lee Stiles in the year 1865, this arises as a means of communication used by the government and the military armed forces. If we want to send a telegram as the first point we must write the title, followed by that our text, we put the address of the place to which we want to send it, the type of message (urgent, ordinary, acknowledgment of receipt, etc.), date, recipient, address of the recipient, destination, text and finally, sender. -
The telegraph was created in the year 1876, this was discovered by means of electric current.
Its use is through wired lines or radio communications. -
The first radio transmission occurred in 1901 through electromagnetic waves, this was created thanks to the advances of Nikola Tesla. The radio works by transmitting data through the waves that correspond to it, pushing the data from one radio to another. -
Television was created at the end of the 19th century, its discovery was possible thanks to three discoveries which were: photo electricity, photo analysis procedures and finally the transmission of electrical signals corresponding to each point of an image. The TV works by clicking the power button and changing channels manually or with a remote. -
The first computer was created in 1938, it is the evolutionary result of the ideas of many people related to areas such as electronics, mechanics, semiconductor materials, logic, algebra and programming. To use a computer we must turn it on and enter our password. -
The internet was created in the late 1960s in the context of the Cold War, the beginning of the creation of the internet began with Ada Lovelace who invented the first algorithm capable of being processed by a machine, the internet is used by connecting to a network. -
Emails were created in the year 1971, the creator chose the at sign to determine the recipient and sent a message to himself as proof. The steps to compose an email are: go to Gmail, click on “compose”, add the recipients, add the subject, write a message and to send it at the bottom of the page, click send.