History of cell phones

During life humans always need to communicate with others and at the beginnings when people needed to do this, they had to go to the specific place. Then the humans learn to wrote and it helped them a lot, because now they didn’t have to move to other place, they just had to pay for send the letter.

The years continue and humanity learned a lot of things, specially in technology, for example they learned how to make different machines that made something that a person indicate.
The first machine that helps people to communicate was the telegraph, that is a telecommunications device for transmitting signals at a distance.

Cell phone is based upon radio technology that was developed from the 1940's. The beginning of cell phones can be traced to the innovation in taxi cabs, police cars and other service vehicles where two way radios were used to communicate with one another or with a central base.

The first official mobile phone was used in Sweden by the Swedish police in 1946. The technology was connected to the telephone network and was different from two way radio technology. The phone wasn’t very practical, it was only able to make six phone calls before the car's battery was drained.The technology of modern cell phones started with the creation of hexagonal cells for mobile phones by D.H. Ring from Bell Labs in 1947.

Now at days, we can see a lot of cell phones that makes a lot of things, for example; you can listen to music, you can make some pictures and videos, etc.