Everything goes digital nowadays and we all are digital natives. We probably could not remember how the world looks like without a cellphone. Trace back to the time that the smartphones haven't been invented, we have plenty of electronic devices such as corded telephones, cameras, radios, televisions all serving the people with only one purpose; but the inventors merged all these gadgets into a portable device. It changed the whole population ever since. A single device, initially serves as telephone and now it is more than that. The evolution formulated it to be multipurpose: it could be alarm, timer, note, planner, torchlight... It could even connects us to the world outside. Will there be an end to the innovation of mobile phones? There always will be room for improvement, indeed.
