Technology in Telecommunication – Telephone and Mobile Phone


Communication is to communicate to the other people who are far to them. Once upon a time communication was done by the writing letters and to post them to the corresponding address to whom they want to send. To receive the letter took two to ten days of time and sometimes it took more. But still, now the technology was so much advanced though in some of the Government offices and for the official use they send letters by post office only. The communication of this way is still lives and sometimes it more than any other communication.


The telephone was the first device to use as telecommunication. The year 1876 Alexander Graham Bell was who invented Telephone and took the patent rights from the Government of United States. The telephone was the object which is used to communicate with people far from the distance in the human voice. Telephone converts sound into electronic signals which are transmitted via cables and other communication channels to another telephone which reproduce the sound to the receiver.

Vintage Telephone

Above the century telephone was the invention that the world stands on the same platform. It took the entire world very close and the communication became very fast before it was invented. Within a few minutes, the communication sent to anywhere in the world.

Nowadays, the technology was so advanced but still, the telephone is present in many Government Offices and the private companies to communicate. I think the reason is telephone (landline phone) doesn’t require electricity and maintenance cost.

As the technology changes the telephone also seen different types of models. Like the dial of numbers became keypad and the receiver become without wire means cordless phones arrived.

Once upon a time, landline phones played a major role in our life just a 20 to 25 years before. That time landline phones were not available everywhere, only at PCO where we have to pay money to make a call and that time it was very costly, so that’s why people talk only important matter in it. After sometime every home was had a telephone.

Mobile Phone

The device which can take with us anywhere and it is fit in our pocket, which has no wires or any big battery. The mobile phone is also known as Celluar phone or cell phone. First, the commercially launched cell phone in the year 1983. 
From that time till now the mobile phone has seen generations in it. They are first generation (1G), second generation (2G), Third generation (3G), and now it is the fourth generation (4G). What are the differences made by cell phone in generations? Let’s see…

First Generation (1G)

The first generation mobile phones were looks like big cordless phones. It was so much of weight and the cost of the call was also so costly. It is maximum use to call only, there were no other features available in it. That time these cell phones are maximum used by somehow rich people who can afford it. The first generation mobile phones have buttons called keypad and a small display to see the number which has been typed to call and end the call.

Second Generation (2G)

The second generation mobile phones were less weight compared to the first generation mobile phones, it has more features than the first generation mobile phones like, not only for calling but also to text messages, MMS (Multimedia services), calculators and Java-based games to play. These 2G phones became the revolution in the mobile industry. It was cost efficient to all the people to buy it and easy to use. The internet was used in this phones but it was very slow to load and download. The display was used in 2G phones were maximum colored.

second generation mobile phone

Third Generation (3G)

The third generation mobile phones were most of the touchscreen phones and it was based on the software called “Android” which is developed by the company “Google“. Android has given so many versions like Jellybean, KitKat, Lollypop, Marshmallow, Nougat, and Oreo (till now). In 3G phones, there are more and more features like camera, video recorder, audio recorder, video calling and the internet speed to transfer data that given more attachment to human life.

Fourth Generation (4G)

The fourth generation mobile phones or we can say “Smart Phones“. Entire the world changed with this smartphones just calling by phone is nothing in it, we can have the whole world in our hands. The smartphone has so many features that cannot imagine. The speed of Internet was like the speed of light just one touch we can download audio, video files in few seconds. We have maps in it to find the places where we have to go. High-resolution videos play online, sending emails, unlimited applications (apps) which are most useful in our daily life. We can have weather reports daily and many more which cannot be described in few things. As simply say a mini computer is in our hands.
Fourth generation cell phone
Finally, in coming future, we cannot imagine how mobile industry going to be. Is will stop here, no I don’t think so. We will see more and more versions of it or we say generations. I recently heard about the technology called transparent screen, which is fit in spectacles and it works on our voice technology and also works on face recognition. Just we have to give commands only. I saw in the Hollywood movies some of them.