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.
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.
First Generation (1G)
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.
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.