I searched from the Wikipedia, the interpretation is that a smartphone is a mobile phone provided advanced capabilities, often with PC-like functionality. Unlike we use general mobile phones, smart phone users have the initiative to configure and run applications as they like. The following are reasons why they called smart phones:

1. Operating systems. Operating systems, which allow these high end gadgets to run productivity applications, are the most important software in a smart phone. The common systems include Google Android, Symbian, Linux, Windows Mobile, Java, and Garnet OS. Some smart phones are made with unique operating systems, for example, Mac OS is installed on Apple's iPhone.

2. Qwerty keyboard. The keyboard is very similar to our computer keyboard, but it is not in alphabetical order. If we want to type A, B, C, we need to tap the number 1.

3. Cell phone functions. As its name indicates, smart phones undoubtedly could make and receive calls. Some of them are even supported WiFi, TV or GPS functions like the Ciphone A3+ smart phone.

4. Audio and video display. Smart phones are able to play audio and video files in certain standard formats.

5. Software. Some advance smart phones allow us to manage our Microsoft Office documents. We could delete, create and edit just like we work on a computer.

6. Data synchronization. A smart phone could sync with different applications, such as Apple's iCal calendar programs.

7. E-mail handling. Besides sending and receiving text messages, it is capable of handling e-mails. Some of them only support one e-mail account, some could support multiple e-mail accounts and some even offer you access to instant messaging services.

Above 7 tips help us know why smart phones called smart phone. Yes, with the smart operation system, we can do more through smart phones. Many that we only do in the PC now can finish with this easy taking gadget. Don't you think smart phones give us so much convenience?