Mobile phones

 The Mobile phone is one of the greatest gifts of modern science. It is also called cell phone or smartphone. It is a portable telephone that uses radio waves to communicate wirelessly, without the need to be connected to a physical network. The mobile phone was made by Martin Cooper on April 3,1973 while working at Motorola. It was invented for communication purposes, enabling people to talk to others regardless of location.                                                                                                                                                       #Advantage of mobile phones: There a...