Mobile phone is now 44 years old. Inventor of mobile phone Martin had made his first call on 3^rd April 1973. So, after four decades now mobile phone became the need of every person in the form of smart phone.

Scientist of mobile phone Company, which made Tele communication advance and convenient, gave first call on 3^rd April 1973 to their biggest rivals. At that time the hand set was weighed 3.5 kilogram. Its battery life was only 20 minutes Talk time.

In these four decades many innovations has been made in mobile phones to make human lives much easier.

Written By Sidra Gulraiz