Mobile Phone
Mobile phone is just a telecommunication device, that can make call and receive call over a radio frequency link while the user is moving within a telephone network service area. In present time mobile not just a telephone this is a small portable computer. Structural classification of mobile phone : * Bar Phone * Touchscreen Phone * Smart Phone * Tablet phone Network base classification of mobile phone : * GPRS mobile phone * 2G mobile phone * 3G mobile phone * 4G mobile phone OS base classification of mobile phone : Many type os is present in market. But some os is popular. * Java mobile . * Windows mobile . * Android mobile . * Blackberry mobile . - etc. History of mobile: The first mobile phone is not a mobile phone that is two way radio. That is use only emergency services. That is not public mobile phone. Motorola employee Martin Cooper is first invented public mobile phone (1973). Early mobile phone is 0G mobile phone. The f...