Smartphone badge of transition

           Smartphone is device which are integrated with computing ability and connectivity to other device .Capabilities of smartphone is it use to send and receive mobile phone calls( ome smartphones are also WiFi capable), Personal Information Management (PIM)  wrote notes, playing games and check list, communication between Wifi Signal, data authenticate with Microsoft Windows and Apple's iCal  calendar programs , sent and receive E-mail, chat such  Instant messaging , run applications such as word processing programs or video games and play audio and video files in some standard formats.
         Every Smartphones are integrated with OS , most of it is : Syambian, android ,Windows Mobile, Java and Garnet OS. Every technology have a protocol , for Smartphones it use cell-phone network technology to send and receive data (such as phone calls, web browsing, file transfers, etc). Be careful use smartphone because from research It emit radiation and may be linked to brain tumors for human health