Mobile phone is a prime necessity of life. In the twenty first century, it is difficult to find an individual not possessing a cellular phone. The reason is very obvious that cellular phone has given us with the ability to establish connection even at far off place. Our ancestors have faced enormous difficulty in transmitting the messages due to lack of such devices. Luckily our generation has made enormous progression in science and technology. The evolution of science has changed the world entirely. The population of the twenty first century enjoys rich luxury and convenience offered by science. Cellular device […]